1. Celtics look to stay locked in: Boston is coming off a big win against New York, and will need to keep its foot on the gas against Toronto. After all, the Raptors beat the Celtics by 13 points in their last meeting on Jan. 15.

2. Big opportunity for Raptors: Toronto enters the matchup four games out of the final Play-In spot in the Eastern Conference standings. A win over a team of the Celtics' caliber is a tall task, but the Raptors have shown that it can be done, and it would be a huge way to wrap up their current home stand.

3. Toronto's perimeter defense will be tested: The red-hot Celtics will be hard to slow down, as they're hitting a league-best 17.8 3-pointers per game. Toronto has been solid in limiting the damage from beyond the arc, with opponents shooting 35.6% from deep. Keeping a lid on Boston's 3-point shooting will be paramount for Toronto in this matchup.

4. Barrett's scoring barrage: RJ Barrett is in the midst of his most productive season to date. In his last three performances, Barrett has averaged 26.3 points, 5.0 assists and 4.3 rebounds while shooting 56% from the floor.

5. Porziņģis power: Over his last 20 outings, the star forward-center is making 2.6 3-pointers per game. With Boston's lineup already boasting terrific 3-point shooters like Jayson Tatum, Derrick White and Payton Pritchard, Porziņģis' ability to step out and hit triples makes the Celtics lineup all the more challenging to defend.