Boston College will wear its Red Bandanna uniform against UMass on Saturday, a game played on the 20th anniversary of the Sept. 11, 2001 terrorist attacks.

The uniforms are typically worn just once per season for a designated home game ­to honor former BC lacrosse player Welles Crowther, who sacrificed his life to save others in the World Trade Center South Tower and was later identified for his heroic actions by survivors thanks to the red bandanna he always carried with him. The 2021 Red Bandanna Game is scheduled for the Nov. 5 game against Virginia Tech.

This season, for the first time, the Eagles will wear the jerseys twice.

“We were talking in the summer about when we wanted to have the Red Bandanna game, and we picked a game like we always do,” Boston College football coach Jeff Hafley told The Athletic. “Then, the question was brought up. The 20th anniversary of 9/11 falls on a day we’re actually playing. We talk about 9/11 a lot around here because of Welles and because we have a whole game that we dedicate to honor him and all of the men and women who lost their lives that day. If we’re playing a game on 9/11, how can we not wear the jerseys?

“It’s the right thing to do. It’s what we should do. It’s what we’re going to do. So, we said, why can’t we wear them twice?”