Jim Courier and John Millman unpack what Novak Djokovic's future in the sport holds after his sudden retirement at the Australian Open.

Jim Courier and John Millman unpack what Novak Djokovic's future in the sport holds after his sudden retirement at the Australian Open.

Novak Djokovic has to get past world No. 2 Alexander Zverev while defending champion Jannik Sinner faces US sensation Ben Shelton in the semi-finals.

Novak Djokovic has to get past world No. 2 Alexander Zverev while defending champion Jannik Sinner faces US sensation Ben Shelton in the semi-finals.

MELBOURNE, Australia (AP) — Moments after Alexander Zverev's loss in the Australian Open final Sunday, a person in the stadium yelled out the names...

MELBOURNE, Australia (AP) — Moments after Alexander Zverev's loss in the Australian Open final Sunday, a person in the stadium yelled out the names...

MELBOURNE, Australia (AP) — Moments after Alexander Zverev’s loss in the Australian Open final Sunday, a person in the stadium yelled out the...

With hours to go before the Women's Final, The Morning Serve previews the biggest match so far at the Australian Open. Joined by Tennis royalty...

With hours to go before the Women's Final, The Morning Serve previews the biggest match so far at the Australian Open. Joined by Tennis royalty...

MELBOURNE, Australia (AP) - Moments after Alexander Zverev's loss in the Australian Open final Sunday, a person in the stadium yelled out the names...