TAMPA, Fla. — Here is how the 49ers (4-2) graded in Sunday’s 30-19 loss to the Tampa Bay Buccaneers (5-1) at Raymond James:

PASS OFFENSE: C-

Mac Jones, already battered through three starts, was sacked six times and intercepted twice but threw for 347 yards with a sore oblique and knee. Coach Kyle Shanahan didn’t blame Jones for getting intercepted on the opening possession’s third down, seeing how Kendrick Bourne apparently turned the wrong way on his route.

Bourne, to his growing credit, did rack up 142 yards for a second straight game. Jauan Jennings’ return was far from smooth as he got into a sideline tiff with Shanahan, drew two penalties on the first drive after halftime and finised with a seven-yard reception on three targets.

RUN OFFENSE: D

Christian McCaffrey delivered the 4

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