After 25 games unbeaten, Southampton finally tasted defeat on Tuesday night, and one player seemingly struggled. That came at the hands of Bristol City, who claimed a 3-1 victory over the Saints at Ashton Gate. That has now put pressure on Russell Martin‘s side in the race for automatic promotion. The Southampton boss made four changes to his starting lineup for that clash with the Robins. One of those to come into the side was Shea Charles. Like Joe Rothwell, the Northern Ireland international was brought into the midfield three alongside Will Smallbone. Stuart Armstrong and the injured Flynn…