Deommodore Lenoir explained how Mac Jones' "swag" helped the 49ers QB lead San Francisco's iconic boom box walkout before games.

Not long after nearly losing a fumble on a sack, Mac Jones finally unravels for the 49ers, tossing a deep pick to Jamel Dean that just might seal a home victory for Tampa Bay, which is getting heroic stuff from its own gunslinger in Baker Mayfield:

The 49ers and Buccaneers square off at 3:25 p.m. CDT Sunday at Raymond James Stadium in Tampa, Florida. Alabama’s CBS affiliates are scheduled to televise the game.

The 49ers have made a few bad quarterback decisions in recent years. In March, they made a very good one. When it was time to sign a new backup quarterback, they persuaded Mac Jones to commit for two years,

SANTA CLARA, Calif. — Quarterback Brock Purdy will miss his fourth game this season for San Francisco because of a toe injury, and backup Mac Jones is listed as questionable but expected to start on Sunday against Tampa Bay despite being hampered by injuries to his knee and oblique.

Each Jets loss gets them closer to Justin Fields' replacement. And, hey, Brock Purdy doesn't have to worry about a QB batter, right?

The 49ers' inactives are Purdy (toe), Pearsall (knee), wide receiver Jordan Watkins (calf), defensive lineman Yetur Gross-Matos (hamstring), linebacker Nick Martin and running back Jordan James.

Mac Jones didn’t throw at all in practice Thursday but the hope is he’ll be good to go against Tampa with Brock Purdy likely sidelined again.

San Francisco 49ers quarterback Mac Jones' pass is intercepted by Tampa Bay Buccaneers cornerback Kindle Vildor, giving the Bucs great field position.