New York Jets coach Todd Bowles has rejoined the team after being hospitalized Friday with what the team called an “undisclosed illness.”

The Jets announced that Bowles has arrived at the team hotel Saturday morning. He will travel with the team to Gillette Stadium for its game against the New England Patriots.

It was uncertain if Bowles would direct the team from the sideline, as he usually does, or from the coaches’ booth.

The 53-year-old Bowles fell ill early Friday afternoon and was taken to the hospital. Assistant head coach Mike Caldwell, who ran the Jets’ walkthrough practice, had been told on the team’s flight Friday that he would fill if Bowles could not serve as coach.

Bowles is in his second season as coach of the Jets. He got his tenure off to a promising start with a 10-6 season that finished a win shy of a playoff appearance.

But New York have struggled to a 4-10 mark this season, prompting questions about Bowles’ future as coach as the Jets failed to make the postseason for the sixth straight year.

Bowles has maintained a low-key, even-keeled approach in public despite some fans and media calling for his job in recent weeks.

“When I signed the contract, I knew what my job status was and I’m not worried about that,” he said earlier this month. “I’m going to do the same thing and keep grinding like I always do.”

This is the second health-related situation Bowles has dealt with since coming to the Jets. In February, he had a benign golf ball-sized mass removed from his throat that was initially discovered during the season and didn’t require any additional surgery.