Dallas Mavericks superstar Dirk Nowitzki joins SI Now to look at his team's playoff chances and discuss Kobe Bryant's retirement.

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Mavericks' Dirk Nowitzki: ‘I definitely won’t retire’--IMAGE

Dallas Mavericks forward Dirk Nowitzki has been given an impromptu farewell tour this season despite never officially announcing his retirement. SI Now's Robin Lundberg and Ryan Asselta discuss whether it's fair or foul for the NBA community to assume this will be Nowitzki's last season.

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Dirk Nowitzki is an all-time great, but has a Dallas Mavericks' rebuild been stunted by keeping him around? The Crossover editor Matt Dollinger thinks the Mavs should've moved on years ago.