Tim Duncan has exercised his $5.6 million player option for the 16-17 season with the San Antonio Spurs. 

Duncan's future remains uncertain, however, as he considers retirement. Duncan remained one of the NBA's best defensive players, helping Kawhi Leonard anchor a historically great defense.

The Spurs were eliminated in the second round against the Thunder. 

The Spurs are allowing Duncan to make a decision on his own timetable, but there’s no question that this offseason is the most seriously he’s considered retirement.