Wigan owner Dave Whelan has called on the team to raise their game on Saturday when they face Blackburn at Ewood Park.
Whelan spoke to team following their defeat at Fulham, a performance manager Roberto Martinez described as "flat".
Whelan was absent for that match. Instead he travelled to Blackburn - who lost 2-1 to Chelsea - as a mark of respect to former team-mate Ronnie Clayton, who died last week.
He said: "Blackburn played very well and Ron would have been proud of them because they fought hard and should have won.
"I have been talking to our lads and said `you didn't fight at Fulham but you are going to have to fight at Blackburn'.
"We are in for a tough match. Our lads will have to be up for it."