Complex sentence: One of Shrewton's most famous former players, still active in the game, is Cheltenham Town's professional phase coach Alex Penny, who played over 200 games for the club between 1990--93 and 1997--99.
Split into simpler sentences: One of Shrewton's most famous former players who is still active in the game is Cheltenham Towns Professional phase coach Alex Penny. Penny played over 200 games for the club between 1990--93 and 1997--99.