Kai Wagner has often been linked with Leeds United and the left-back became a free agent when his deal expired at the end of December – but now, he’s re-signed with MLS side Philadelphia Union. Wagner, 26, has starred in America over the last five years – joining the club back in February 2019. He has gone on to play 170 times for Philadelphia, having a hand in 39 goals for the Union, scoring seven. Leeds have been constantly linked with Wagner over the last couple of years, a recent report claiming that Leeds, Brentford and West Ham were all looking at luring the German assist machine to Engl…