Former boxing champion Muhammad Ali attends the Norman Mailer Center 4th Annual Benefit Gala on October 4, 2012 in New York City.

Former boxing champion Muhammad Ali attends the Norman Mailer Center 4th Annual Benefit Gala on October 4, 2012 in New York City.

*Muhammad Ali has been hospitalized for a respiratory condition, according to TMZ.

The boxer’s spokesperson says he is in fair condition and being treated by a team of doctors. He is expected to remain in the hospital for a short while, the rep says.

Muhammad Ali Celebrity Fight Night Award honoree Carrie Underwood (L) and Muhammad Ali attend Muhammad Ali's Celebrity Fight Night XXII at the JW Marriott Phoenix Desert Ridge Resort & Spa on April 8, 2016 in Phoenix, Arizona.

Muhammad Ali Celebrity Fight Night Award honoree Carrie Underwood (L) and Muhammad Ali attend Muhammad Ali’s Celebrity Fight Night XXII at the JW Marriott Phoenix Desert Ridge Resort & Spa on April 8, 2016 in Phoenix, Arizona.

Ali, 74, was last seen out and about in April, when he attended the Celebrity Fight Night charity event in Arizona. The guest list included Carrie Underwood and Rob Gronkowski.

According to TMZ, Ali was last hospitalized in January 2015 for follow-up care after a severe infection.