White Sox flamethrower Michael Kopech returned to the mound for the first time since undergoing Tommy John surgery roughly a year and a half ago. 

The tall righthander wasted no time lighting up the radar gun.  The very first pitch he threw was clocked at 101 mph. 

Although he only pitched one inning, White Sox fans have a lot to look forward to.  He hit triple-digits with his first four pitches of an 11 pitch inning.

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Flip the Page to see the impressive inning: