Griffin looking to build 'great partnership' with Antetokounmpo as Bucks aim to retain star

Giannis Antetokounmpo is unsure about extending his contract with the Bucks.
New coach Adrian Griffin wants to form strong partnership with Antetokounmpo.
Antetokounmpo wants to see Bucks' commitment to winning before deciding on contract.
Antetokounmpo and Khris Middleton expected to be ready for training camp after surgeries.
The Bucks fired former coach Mike Budenholzer and hired Adrian Griffin.