Came off the bench against Napoli in super coppa and saved us with a goal and a won penalty.
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I actually found all the info about his off the bench record

Came off the bench on
11 matches, played
371 minutes as a sub,
scored 6 and assisted 1 goal. Plus he won a penalty.
Before he was subbed in, Juve's record in these 11 matches was 1 wins-3 draws-7 defeats. With his inclusion we turned that into 5 wins-4 draws-2 defeats.
Sheik destroyed!
But seriously, almost every striker has better stats when he's subbed in than if he starts the match. A striker is usually subbed in when his team is attacking and chasing a result. Add the fresher legs of the subbed player and it's normal that the stats are better when the striker comes off the bench.