"Boston <a class=""link rapid-noclick-resp"" href=""/nba/teams/boston/"" data-ylk=""slk:Celtics"">Celtics</a> stars <a class=""link rapid-noclick-resp"" href=""/nba/players/4840/"" data-ylk=""slk:Kyrie Irving"">Kyrie Irving</a> and <a class=""link rapid-noclick-resp"" href=""/nba/players/4245/"" data-ylk=""slk:Al Horford"">Al Horford</a> are reportedly leaving in free agency. (Getty Images)"
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