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Kevin Garnett

Celtics center Kevin Garnett is a game-time decision for Monday’s showdown against the Heat, according to the team’s media relations department.

Suffering from an adductor (groin) strain, Garnett sat out Saturday’s 105-88 blowout of the Bobcats, Sunday’s practice and Monday morning’s shootaround at the team’s practice facility in Waltham.

As a result, the C’s may face the daunting task of ending Miami’s 22-game win streak — on the five-year anniversary of halting the Rockets’ 22-game string — without the heart of their defense. The Celtics are riding an 11-game home winning streak that began against the Heat on Jan. 27, when news of Rajon Rondo‘s season-ending injury spread like wildfire throughout the Garden.

Miami has lost 10 straight regular-season games in Boston since April 6, 2007, including all five games during LeBron James‘ tenure.