Defender Rob Kiernan was singled out for special praise by Rosler after scoring his first senior goal against the Foxes and impressing in only his third league start for the club.
The German, who replaced Owen Coyle as Wigan boss in December, told BBC Radio Manchester "He played his first game against Watford, then QPR and then tonight. You can't get harder than that.
"The way he played with and without the ball was excellent. The boy can go a long way."