Both teams are hot. The Celtics have won 4 in a row while the Spurs are winners of 6 of the last 7. The key here is that Kawhi Leonard is still out and unlikely to play until Saturday (at the earliest). Without Kawhi, the Celtics have the talent advantage on paper along with the NBA's best defense.
Jayson Tatum continues to be lights-out, leading the NBA in 3FG %, while Jaylen Brown should return tonight after missing 1 game due to a swollen eye. With Brown likely to play and Kawhi out, I like the 22-4 Celtics as underdogs in San Antonio.