Guerrero was sent for X-rays during Monday's game against the Mets after fouling a ball off his toes on his left foot, but he remained in the game after the results returned negative, Keegan Matheson of MLB.com reports.
Guerrero walked off the field gingerly and was spotted heading down the tunnel to the clubhouse following his third at-bat of the game, but he appears to have avoided a significant injury. The team will likely re-evaluate the slugger Tuesday morning to determine whether he'll be ready to go for the second game of the series. Spencer Horwitz would be the obvious choice for a start at first base if Guerrero is forced to sit.