Colts quarterback Andrew Luck does not believe he will need a second surgery on his right shoulder after spending the past six weeks working with a trainer in the Netherlands.

"My gut and my feeling tells me that I do not need another surgery," Luck said Friday. "I think I need to work more and to stay on this straight and narrow, if you will. I don't want to sound like throwing is the test. I'm doing well, and I will continue to do well. That's how I feel today."

Luck, who had right shoulder surgery last January, went to Europe after the Colts gave him a cortisone shot, shut him down from practicing and eventually placed him on injured reserve on Nov. 2 because of continued soreness in his shoulder. The quarterback said he did not receive any injections in his shoulder while in the Netherlands. It was strictly "rehab, strength training, soft-tissue work" with a trainer whom he has worked with in the past and one the Colts approve of.

"I was experiencing pain still," Luck said. "And that scared me, because I sort of remember the previous year and why I had surgery in the first place, because I was feeling pain while doing things. That was something that hit my mind and precipitated all these events happening."

Luck said his shoulder feels "stronger, more stable," and that he is more confident in it now than when he returned to practice in September. The test for Luck, though, will be when he resumes throwing in early January. (He hasn't thrown a ball since he was shut down in late October.) It's then that Luck and the Colts will have a better idea if the franchise quarterback will need to have another surgery, which could set him back as long as another six months.