Sithole won a crucial turnover 13 minutes before the end which eventually led to the only try of the game scored by Mvovo.
“I think Sithole had a great game and I think he troubled the Lions midfield the entire game,” said White.
“And I don’t know why people questioned Lwazi’s ability to play fullback. He is great under the high ball, attacks well and defends solidly.”
Sharks flyhalf Fred Zeilinga is likely to be out for up to four weeks with a hamstring injury after kicking two early penalties which left Frans Steyn playing the role of pivot.
With the Sharks asking too many questions from the Lions at the breakdown, Steyn broke the home team’s back with four monster penalties in the second half.
“I think we played well enough and enjoyed 70% possession, but they scrambled well on defence and made it difficult for us,” said White.
“It was, however, a vital away win and we’ve seen that away wins in this competition are hard to come by.”
Lions coach Johan Ackermann believed the try was the only real difference between the two sides.
“I think at 15-12 it was still anybody’s game. It was a bad decision from Alwyn (Hollenbach) to start running inside the 22,” said Ackermann.
“I don’t think the final scoreline is a true reflection of the game. Maybe 15-12 would’ve been a better indication, but credit to them, they played for the entire 80 minutes.”