A week of good or bad matchups can make all the difference in Fantasy basketball. And before you make any kind of claim on the waiver wire or set any lineups for Week 15, you need to see what NBA Fantasy expert Mike Barner has to say. 

Barner is one of the most respected voices in the industry, whose work has appeared in Sports Illustrated and on Yahoo, RotoWire and KFFL. He's also been featured on ESPN Radio. He digs deep into the data, examining team trends and projecting game outcomes. If there's anybody who can spot an edge in a matchup or identify a player in position to break out, it's him.

Now, Barner has studied the upcoming NBA schedule and is sharing his best and worst matchups for Week 15 of Fantasy basketball. They'll help you figure out who to sit, start, add, and drop this week. 

One thing we can tell you for this week: Barner is giving a boost to several Boston Celtics players because of their upcoming schedule.

"Four games against porous defensive teams are about as good as it gets for Jayson Tatum and Jaylen Brown," Barner said. "What's also good news is that none of these four games will be played on consecutive days, so Kemba Walker could suit up for each contest. Robert Williams is also a great starting option after the team traded Daniel Theis to the Bulls. Marcus Smart and the newly-acquired Evan Fournier could eat into each other's playing time and scoring opportunities, but this favorable stretch still makes them viable starting options if you're roster is thin at the moment."

Barner has also identified a sleeper who NEEDS to be in your lineup this week because of a favorable schedule. This player should return massive Fantasy numbers in multiple categories, and he's most likely on the waiver wire in your league right now.

So who should you start and sit this week? And which overlooked sleeper could lead your team to victory? ... Join SportsLine right now to get Mike Barner's best and worst Fantasy basketball matchups for Week 15, all from one of the most respected voices in the industry!