Miami Dolphins starting running back Arian Foster was forced to miss most of the team’s 31-24 loss to the New England Patriots on Sunday after sustaining a groin injury. The team is going to have Foster undergo an MRI on Monday to get more fidelity on the injury, according to a report from the Miami Herald’s Armando Salguero.

The Dolphins, according to Salguero, are concerned that the injury could be serious enough to at least cause the running back to miss the team’s Week 3 contest against the Cleveland Browns.

Miami will likely use Jay Ajayi as the starter if Foster is unable to play, but could look to Kenyan Drake, Isaiah Pead, or Damien Williams. Pead and Williams were inactive against the Patriots, but both were active in Week 1 against the Seattle Seahawks and had good performances in the preseason.

The Dolphins will likely get a better idea of exactly what they will have at running back this week with the results of Foster’s MRI.