Tate came through the system at United before moving on.
"Itâ€™ll be nice to see my old friend Alan Tate who I played with in the youth team," Fletcher recalled to manutd.com. "He was a couple of years older than me and always looked after me and made sure I was okay when I first came to Manchester.
"Iâ€™ll always remember him for that. Heâ€™s recovering from a bad injury at the moment and the sooner he gets back in the team the better itâ€™ll be for Swansea because heâ€™s a top player.