Grande Ledge retires Al Horford’s high school jersey

Photo by David Dow/NBAE via Getty Images Al Horford returned to Grand Ledge High on Friday, two decades after graduating from the Michigan high school for his No. 42 jersey retirement.

The timing came as some surprise with two national championships, an NBA title and one of the league’s longest professional careers reaching its late stages. Horford told CLNS Media/CelticsBlog on Sunday that he and the school long discussed a ceremony, but struggled to find a high school game night that didn’t interfere with the Celtics’ schedule.

“It was really cool. For many years, we’ve been trying to do it. With our schedule, it’s always been tough to get there for a game in-season,” Horford said. “They…