Boston Celtics

Boston Celtics forward Jayson Tatum (illness) was a late scratch for Monday's contest against Orlando. After he was named a starter for the matchup, the team downgraded him to questionable, and Tatum was ruled out entirely at halftime. He sat out his third game of the season, all of which have occurred this month. Tatum's absence on Monday obviously leaves a question marking hanging over him ahead of Boston's Christmas Day outing against Philadelphia. Al Horford replaced Tatum in the starting unit on Monday, while Sam Hauser and Payton Pritchard might be more involved off the bench if Tatum isn't available against the 76ers.

According to Gary Washburn of The Boston Globe, Boston Celtics forward Sam Hauser (back) will play against the Orlando Magic on Monday. Hauser has been unavailable for the last two games due to lower back spasms. The 27-year-old has posted averages of 8.6 points, 3.5 rebounds and 1.0 assists across 21 games this season. He's shooting a career-worst 37.3 percent from three-point range and will likely not impact fantasy much on Monday.

According to Keith Smith of Spotrac.com, Boston Celtics forward/centerXavier Tillman Sr. (illness) will not play against the Chicago Bulls on Thursday due to an illness. Tillman's absence shouldn't impact the Celtics' rotation, as he's averaged just 8.6 minutes across 17 games so far in this year's campaign. With Tillman and Sam Hauser (back) both out, players like Neemias Queta and Jordan Walsh could soak up a few extra minutes on Thursday.

Boston Celtics forward Sam Hauser (back) will not be in the lineup on Thursday against Chicago. He's battling lower back spasms, sitting out for the second time in three games. Hauser's absence might give Jordan Walsh and Drew Peterson extra playing opportunities, but they aren't good fantasy options. The returning Al Horford (rest) should also soak in some of the available minutes. It's a good matchup for Horford, as Chicago has struggled to defend opposing centers all season.

Boston Celtics forward/center Kristaps Porzingis (heel) is good to go for Thursday's matchup against Chicago. He was initially regarded as questionable for the contest after a heel injury limited Porzingis to 11 minutes on Sunday versus Washington. Thursday's matchup is a favorable one for Porzingis, as the Bulls are allowing the second-most points in the league this season (121.9). Chicago also gives up the fifth-most fantasy points to opposing centers and power forwards.