M.S.G. athlete Crossword Clue

 The M.S.G. athlete crossword clue refers to a player for the New York Knicks or the New York Rangers, both of which play their home games at Madison Square Garden (MSG).

So, the answer to the crossword clue is KNICK or RANGER.

Some examples of famous M.S.G. athletes include:

Patrick Ewing (Knicks)

Walt Frazier (Knicks)

Carmelo Anthony (Knicks)

Henrik Lundqvist (Rangers)

Mark Messier (Rangers)

Jaromir Jagr (Rangers)

I hope this helps! Let me know if you have any other questions.