DETROIT -- Detroit Red Wings general manager Ken Holland on Monday said defenseman Niklas Kronwall might have his left knee scoped to determine the cause of his discomfort.

Kronwall has seen doctors in Sweden and the U.S., including a couple specialists.

"They suggested we do a minor scope to explore, to look and see what's going on,'' Holland said.

"It's minor, nothing major. He started to skate three weeks ago and felt some discomfort. It's not the same as last year, it's in a different location. So it's a little confusing.''

Holland said Kronwall never felt right last season following a knee-on-knee hit from Montreal's Georges Laraque on Nov. 21, an incident for which the former Canadiens forward was suspended five games.

Kronwall missed 30 games with a sprained medial collateral ligament and sat out four additional games later in the season after re-injuring the knee.

"You get up every day and you don't feel you're 100 percent,'' Holland said. "He wants to start the season 100 percent.''

If Kronwall has surgery, it's uncertain whether he would be ready for training camp, which begins Sept. 18 in Traverse City. But the club expects him to be ready for the start of the regular season Oct. 8.