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Fantasy Basketball Waiver Wire Adds for Monday, December 22: Isaiah Collier, Naji Marshall, John Collins and More

Looking at several fantasy basketball waiver wire options at the start of a new week.

Morgan Rode Dec 22nd 1:03 PM EST.

Dec 20, 2025; Salt Lake City, Utah, USA; Utah Jazz guard Isaiah Collier (8) drives to the basket against Orlando Magic guard Jase Richardson (11) during the second half at Delta Center. Credit: Rob Gray-Imagn Images
Dec 20, 2025; Salt Lake City, Utah, USA; Utah Jazz guard Isaiah Collier (8) drives to the basket against Orlando Magic guard Jase Richardson (11) during the second half at Delta Center. Credit: Rob Gray-Imagn Images

A new week of fantasy basketball is upon us, so let's go over some of the most-added players.

Also be sure to check out Monday's streaming article, plus a story on weekly projections and more waiver wire/streaming options.

Check out fantasy basketball waiver wire options on FantasySP all season long!

Should You Add Isaiah Collier?

Collier has been added in 16.24% of leagues, bringing his overall mark to 47.46% overall.

He's gotten more playing time of late, logging 28 or 31 minutes over the past three contests. Collier has 46 points, eight rebounds, 30 assists, three steals and a block over those contests.

He is averaging 8.5 points, 2.1 rebounds, 6.1 assists, 0.5 steals and 0.3 blocks over 22 minutes in his 19 games (one start) this season. Collier is shooting 50% overall and he's 36.8% from 3-point land.

With more playing time, Collier is capable of more, like he's been showing the past three games. I had high hopes for him coming into the season, so he's been pretty underwhelming. Maybe he is now becoming the player I expected him to be.

Utah is dealing with some injuries to big-time players, so it's helping Collier take on more of late. Collier is capable of playing these extended minutes when others return though, so I see some long-term upside in him.

I think Collier needs to be rostered in all deeper leagues now, while he's a very good standard league streaming asset. If you add him as a streamer in standard leagues, I'd hold him until his numbers start to fade.

Collier might be at the start of his breakout this season, so get him on your roster if you can.

Should You Add Brook Lopez?

Lopez is owned in 23.6% of leagues after a 15.16% increase.

His playing time shot up in the last game. He was in the teens for minutes, and even in single digits sometimes, but logged 25 minutes in his last contest. Lopez responded with 11 points, five rebounds and two blocks.

Ivica Zubac is going to miss several weeks with a sprained ankle, which opens more playing time for Lopez, and a player we will get to in a bit.

Lopez still has some fantasy value to take advantage of, especially if he's getting enough playing time. He might get enough playing time until Zubac is back to roster and utilize him in some deeper fantasy leagues.

I don't see him getting to standard league value, but he's worth keeping an eye on at the very least.

Should You Add Naji Marshall?

Marshall is up 11.94% - he's owned in 62.15% of leagues overall.

Marshall has been in a pretty good groove since early this month. In his last seven games, he is averaging 17.3 points, 3.4 rebounds, 2.6 assists, 1.1 steals and 0.1 blocks over 32.3 minutes a contest.

He has scored in double digits in all those games, and is coming off a 22-point showing in his most recent contest. Marshall can fill up the stat sheet a bit outside his scoring, so he's a pretty solid fantasy asset.

Dallas is dealing with a number of injuries, but most of those guys are going to return soon, or this season. That means Marshall's fantasy value over time could drop.

Right now though, he's a pretty good fantasy asset, and I'd take advantage of his situation while things are still favorable for him.

He should be rostered in just about every deeper fantasy setup at this point. If he's not permanently held, Marshall is at least a streaming option in those deeper leagues.

Marshall has standard league streaming upside in my eyes, and could be worth holding until his numbers start dropping. He's shown consistency this month, and is probably outperforming some players on the end of your bench. Compare those players to Marshall and see if he might be worth adding for a bit.

Dec 12, 2025; Dallas, Texas, USA; Dallas Mavericks forward Naji Marshall (13) looks on during the game between the Mavericks and the Nets at the American Airlines Center. Credit: Jerome Miron-Imagn Images
Dec 12, 2025; Dallas, Texas, USA; Dallas Mavericks forward Naji Marshall (13) looks on during the game between the Mavericks and the Nets at the American Airlines Center. Credit: Jerome Miron-Imagn Images

Should You Add John Collins?

Collins sits at 74.58% owned after a 10.87% increase.

Collins is the other Clipper on the rise after the Zubac injury. He has started most of the season, but saw his playing time jump up in the last appearance.

He played 31 minutes, after only hitting that mark one other time previously this month. Collins had 17 points, 12 rebounds, two blocks and steals and one assist in his 31 minutes.

Collins is averaging 12.5 points, 4.8 rebounds, 0.9 steals, 0.8 assists and 0.6 blocks over 27.1 minutes a contest. He's shooting 50.6% overall and is just 30.1% from deep.

He doesn't offer much outside his scoring, but with more playing time, and a rebounding need without Zubac, Collins could shine until the big man is back.

I like the idea of utilizing him in all deeper leagues until Zubac returns. Collins could also have standard league upside if he can be a double-double threat, even if those are his only notable stats on a nightly basis.

Consider adding Collins for several weeks.

Should You Add Bruce Brown?

Brown has been added in 10.49% of leagues, bringing his overall mark to 14.69%.

He's taken on more of late, averaging 28.8 minutes over his past four contests. Brown is averaging 8.3 points, 7 rebounds, 3.5 assists, 1.5 steals and 0.3 blocks over those contests.

For the season, Brown is averaging 6.9 points, 4.1 rebounds, 2 assists, 0.9 steals and 0.3 blocks over 24.3 minutes a contest. He's shooting 43.3% overall and is 31.8% from deep.

You can see that his stats have jumped with a little more playing time, and that's what you hope for with any player. 

With Christian Braun out and Peyton Watson missing time of late, Brown has been taking on more. Watson should be back relatively soon, and Braun is getting closer to returning too, so Brown is more of a short-term add in my eyes.

He's worth some adds in deeper leagues, and could be a streaming option in those leagues. Brown likely won't get near standard league value, but he's worth utilizing in some deeper leagues for the time being.

Other Waiver Wire Adds

After those five heavily-added fantasy basketball players, several others are also being added in a decent amount of fantasy leagues.

Denver's Cameron Johnson is up 6.74%, while Houston's Tari Eason has been added in 6.69% of leagues. Johnson is up to 64.97% rostered, while Eason sits at 45.51%.

Players being added in between 5-6% of leagues are: Cleveland's Sam Merrill (14.69% overall), Detroit's Tobias Harris (61.02%) and Duncan Robinson (27.68%), Memphis' Cedric Coward (66.1%), Boston's Anfernee Simons (59.89%), Utah's Ace Bailey (37.29%), Orlando's Anthony Black (73.45%) and Portland's Donovan Clingan (93.22%).

Detroit's Isaiah Stewart is up to 44.63% owned after a 4.97% increase. Golden State's Brandin Podziemski is up 4.9% and sitting at 61.02% overall. New York's Mitchell Robinson is owned in 39.89% of leagues after a 4.87% boost up.

Utah's Jusuf Nurkic is up 4.79% to 68.93% overall. New Orleans' Dejounte Murray is owned in 53.11% of leagues after a 4.36% increase. Memphis' Kentavious Caldwell-Pope is up 4.13% and sits at 12.99% overall.

Cleveland's De'Andre Hunter is rostered in 50.85% of leagues after a 4.01% increase. Memphis' Cam Spencer has been added in 3.97% of leagues and is owned in 74.01% overall. Washington's Khris Middleton is up 3.41%, bringing his overall mark to 20.71%.

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