49ers’ Mac Jones, who played for Saban and Belichick, turns to Kyle Shanahan for help

SANTA CLARA — It wasn’t the greatest of practice sessions Wednesday for 49ers quarterback Mac Jones.

He had a pass intercepted by Derrick Canteen when it appeared he and receiver Russell Gage Jr. were not on the same page. Jones overthrew rookie Jordan Watkins on a post. Had passes broken up over the middle on some 49ers’ bread-and-butter crossing routes.

Jones wasn’t nearly as efficient as starter Brock Purdy, which is understandable.

Just another day in a June no-contact...