INDIANAPOLIS (AP) — The Indianapolis Colts intend to stick to the long-term plan.

Even if it means going into the regular season without Andrew Luck.

While they believe their biggest investment will be completely healthy eventually and that Luck provides their best chance to win now and into the future, they’re not going to rush Luck back.

And they’re not looking for a quick fix after a demoralizing 24-10 preseason loss to the Detroit Lions on Sunday.

“I can’t say unequivocally that he (Luck) will be ready for the Rams game,” team owner Jim Irsay said. “But I can say I feel very confident that he will be ready to start the season.”

Luck is on the Colts physically unable to perform list as he continues to recover from offseason surgery to repair a partially torn labrum in his throwing shoulder.

The Colts have repeatedly said they’re optimistic Luck could open the regular season Sept. 10 at the Los Angeles Rams. That part hasn’t changed.

But team officials have been mostly restrained about providing specific timetables or updates about exactly what Luck is doing in rehab.

On July 24, new general manager Chris Ballard said Luck started throwing the previous week. Six days later, Luck told reporters only that he had started the throwing process with a tennis ball.

That was the last big update until Sunday.

First, Ballard told the local TV broadcast that Luck’s strength levels are measuring slightly better than “at any point last year” when Luck was playing through the injury.

Irsay offered another perspective.

“He isn’t throwing a football as strong as he wants to because we won’t let him,” Irsay said. “But we are very disciplined. We know this is…