Birmingham sell defender Wagner back to Philadelphia

Birmingham City have agreed to sell defender Kai Wagner back to Major Soccer League side Philadelphia Union six months after he joined Blues.The 29-year-old signed a two-and-a-half-year contract for an undisclosed fee in January after spending seven years in Philadelphia.In his short stay at St Andrew's, he started 16 games in the Championship last season and played twice in the FA Cup, where he scored his only goal for the club in a third-round win at Cambridge United.Blues said in talks with t