49ers rookie Mike Davis foots bill on $2,000 dinner tab

Veterans forcing a rookie to foot the tab on a pricey dinner out is a tried and true NFL tradition (here), a lesson San Francisco 49ers first-year running back Mike Davis learned all too well over the weekend.

Davis, drafted in the fourth round — 126th overall — in the 2015 NFL Draft, posted a photograph to Instagram showing how he was on the hook for an expensive meal outing, presumably with some of his teammates, as the bill indicated he owed $1,878.59 for the feast.

“Welcome to the NFL rookie,” Davis wrote on Instagram. Indeed.

Davis signed a four-year, $2.748 million deal — $466,781 guaranteed — with the Niners that came with a $117,195 signing bonus, per sportrac. With that in mind, it’s…