Chris Bosh
In 2006, Chris Bosh carried the Toronto Raptors to their first playoff appearance in five years. Getty Images

Chris Bosh played his last NBA game three years ago but hasn't ruled out a comeback despite a long layoff due to health issues. The 11-time All-Star took to ESPN's "First Take" Thursday and suggested a possible return to professional basketball.

"I’ve been in the gym, I can still play basketball," Bosh told Stephen A. Smith. "No, I’m not done yet. Yeah, I’m trying to come back. Man, I see all these guys shooting threes and not playing defense, man, I gotta get some of it.

"I'm not going to be in a position where I'm risking my life. So if I ever get back on the court like that and people are worried, it's not going to be a life-risking situation."

Bosh, 33, was ruled out of basketball following a blood clot diagnosis in his lungs that had eventually spread to his calf.

In March 2016, Bosh released a statement that said he remained "positive" he could come back to the NBA. He added that his condition was "never been life-threatening" and that he did not have a blood clot condition called "deep vein thrombosis."

However, the Heat maintained caution with Bosh, who received blood thinners as a treatment for the clots.

The team did not allow Bosh to play because its considered risky to play a contact sport while taking the medication, the Miami Herald reported.

Bosh considered taking a less potentially harmful medication, but the organization stayed firm on its decision and wouldn’t let him play until a doctor fully approved.

Even so, sources close to the team feared that no doctor would clear Bosh to play, Sports Illustrated reported.

The Heat placed the two-time NBA champion on medical waivers in July 2017 after doctors ruled he had a career-ending condition.

The team later announced that it would retire Bosh’s jersey.

Bosh averaged a team-leading 19.1 points and 7.4 rebounds per game for the Heat in 2015, the season before he was diagnosed with the illness.

The Toronto Raptors selected Bosh No. 3 overall in 2003, part of a strong draft class that included All-Stars LeBron James, Carmelo Anthony, and Dwyane Wade.