BOSTON — When the Florida Gators won the national championship on Monday night, there was a notable alum in the stands: Celtics veteran Al Horford. Horford doesn’t get to be a spectator often.

In the Boston Celtics victory over the Memphis Grizzlies on Monday night, veteran big man Al Horford turned back the clocks with a season-high 26 point performance in the 117-103 victory.

On Monday, Memphis interim coach Tuomas Iisalo attempted a similar scheme with Al Horford and the 38-year-old teamed with Holiday to make sure it backfired. Horford’s 26 points was his most in a ...