Jimmy Garoppolo has had an up and down preseason, but claims part of that is by design.

The San Francisco 49ers quarterback says he likes to try things like throwing into coverage during the preseason to see how his receivers fight for the ball.

"A big part of that is it still being preseason, or in practice, you try things like that," Garoppolo said. "You know, during a real game, you wouldn't make that throw or that decision, but there's a trust factor between quarterback and ... whoever's catching the ball. The more you try those things, you see who's going to make the play for you in a crucial situation."