Maria Sharapova is getting back into the swing of things in the ring.

Sharapova is appealing her two-year ban after testing positive for the banned substance meldonium at the Australian Open in January.

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The Court of Arbitration for Sport is expected to hear the five-time Grand Slam champion's appeal by September 19th. 

The former No. 1 appears in fighting form punching through anger management in this Instagram video she posted of her boxing workout complete with the "Eye Of The Tiger" theme from Rocky.

 

Anger management on a Sunday afternoon

A video posted by Maria Sharapova (@mariasharapova) on

Aug 28, 2016 at 4:32pm PDT

 

Sunday plans...

A photo posted by Maria Sharapova (@mariasharapova) on

Aug 28, 2016 at 3:54pm PDT

 

Getting out for an afternoon workout was not easy today until these girls brought their energy and that was all I needed!! 💪🏼

A photo posted by Maria Sharapova (@mariasharapova) on

Sep 1, 2016 at 6:46pm PDT