The potential championship matchups should bring a lot of intrigue to the first Grand Slam tournament of the year

If it seems as if there’s always something going on with Novak Djokovic at Grand Slam tournaments, that’s because there usually is. Even Djokovic himself acknowledged as much as he prepared to face Alexander Zverev in the Australian Open semifinals Friday after taking painkillers for a hurt left leg.

The left-handed Shelton did some entertaining of his own, including earning cheers by doing a couple of push-ups after tumbling in the concluding tiebreaker, and he reached his se