Schalke boss Christian Gross was not entirely pleased with the debut of Shokdran Mustafi against RB Leipzig.

The German side fell to a 3-0 defeat to RB Leipzig at home in the Bundesliga.

Mustafi played his first game for the club after joining from Arsenal on a free transfer.

"I'm not 100 per cent satisfied with his performance, but with his commitment," said Gross, as quoted by Sport1.

"He tried everything. He stabilised the defence and gave many instructions.

"For the future, he is definitely the right transfer, I am convinced of that. He is a great personality and will help us tremendously in our situation."