Toronto Maple Leafs fans are bracing for a potentially seismic shake-up as star defenseman Morgan Rielly has reportedly made a trade request, citing a desire to play for a team in the Western Conference. According to sources, Rielly has given the Maple Leafs a list of four teams in the West that he would be willing to play for, sparking speculation about the future of the 29-year-old's career in Toronto. Rielly, a key contributor to the Maple Leafs' defense corps, has been a mainstay of the team since being drafted in 2012. With the trade deadline looming, the Maple Leafs will have to weigh their options carefully in order to meet Rielly's demands and avoid losing a key player.

NHL rumors: Morgan Rielly gives Maple Leafs 4 Western Conference teams in trade request  Yahoo Sports