NFL star Christian McCaffrey soaks up the sun in Mexico with his girlfriend Olivia Culpo

San Francisco 49ers running back Christian McCaffrey is getting some much-needed rest and relaxation with his girlfriend and former Miss Universe Olivia Culpo.

The pair were photographed together in Mexico - with Culpo posting a picture of them in a restaurant on her Instagram story with the caption: 'My [heart]'

Culpo's younger sister Sophia joined them on their retreat, posting a picture of her and her sister on Instagram taking in the sun on board a boat.

Sophia isn't the only one joining McCaffrey and Olivia on their vacation - with a few 49ers teammates joining in on the fun.

Another story posted to Insta showed a group photo at The Nowhere Bar in Cabo San Lucas - with McCaffrey and Culpo joined by a pair of Niners: TE George Kittle, FB Kyle Juszczyk, and their wives.

Christian McCaffrey is enjoying time off with girlfriend Olivia Culpo & some 49ers teammates

Joining in on the action was Gracie Hunt - the daughter of Kansas City Chiefs owner Clark Hunt.

It's been an interesting season for McCaffrey - who began the campaign as a member of the Carolina Panthers and ended it with a trip to the NFC Championship with San Francisco.

He played in six games with Carolina - the team that drafted him with the eighth overall pick back in 2017 and saw him turn into a franchise star.

After racking up 393 yards and 85 rushing attempts in Charlotte, the Panthers moved him to the 49ers where he played out the rest of the season.

McCaffrey played eleven regular season games in San Francisco - grabbing 746 rushing yards and six touchdowns. In the postseason, he added 238 yards rushing to his tally - bringing him up to 1,377 for the entire year.