Mbuyi scored twice and added an assist in OHL Owen Sound's 5-4 loss to Sarnia on Wednesday.
Mbuyi has seven goals and four assists over his last six games. The Penguins prospect is up to 14 goals, 10 helpers and a minus-6 rating over 17 contests this season. His hot start has him one point back of the OHL lead, though he has played one more game than the players in front of him.