Luka Modric struggles to explain Tottenham's form slide since the New Year.
Modric is unable to put his finger on exactly what went wrong but admits Champions League burnout may have been a factor.
"We need to focus on qualifying for next season," he said.
"If it hadn't been for the problems we had in the last two-and-a-half months we could have easily been in the top two or three in the Premier League.
"We had a bad run. It happens in football. You have bad days. But we had some good days, too. In the Premier League and the Champions League.
"I can't explain what went wrong. We just couldn't kill teams off. Maybe, because we had some injuries too, the players got tired from playing all those big games."
