In his post-match press conference this afternoon, Roy Hodgson revealed that James McArthur had been suffering from a back injury against Leicester City and, despite "having a very good game," he had to be substituted off as a result.
Hodgson was providing an update on the status of three players who had all suffered during a physical clash. The other two were Gary Cahill and Cheikhou Kouyate, who collided heads midway through the second-half.
Hodgson explained that the pair might "have a sore head this evening" but that he expects them to be fully recovered in time to partake in training on Tuesday.