Chicago Bears quarterback Jay Cutler has praised rookie offensive linemen Kyle Long and Jordan Mills for the starts they have made at the franchise.

The duo impressed for the Bears during their pre-season win over the San Diego Chargers on Thursday as they look to earn starting places ahead of the new season.

Cutler was particularly happy with the pair's blocking and pass protection, but also hinted that there was room for improvement.

"They did well. They were fired up and excited to be out there. I don't think they were nervous by any means. They run blocked well and their pass protection was just as good," Cutler told the Bears' official website.

"We'll keep going with those guys and I know [offensive coordinator Aaron] Kromer will coach them up. I'm sure there are corrections to be made, but I was at ease having them in, which is nice."

Long was chosen as the 20th overall pick in this year's draft, while Mills had to wait until the fifth round and the 163rd overall pick.