Friends fans have come to star Matthew Perry's defense after he appeared to slur his speech in a promo for the upcoming reunion special.

Perry was seen with co-stars Jennifer Aniston, Courteney Cox, Lisa Kudrow, David Schwimmer and Matt LeBlanc to tease the show, which was shot in April and will air on May 27 via HBO and HBO Max.

Some fans notice the 51-year-old actor stammered and stared in the clip.

When asked if he ever took anything from set as a souvenir, he admitted: "I stole the cookie jar that had the clock on it' with a heavy 'sh' sound at the start of 'stole."

Some fans were quick to voice their concerns on Twitter.

"Just saw People interview and can't believe how Matthew Perry looks like… seriously it breaks my heart," one fan wrote online.

Related: 'Friends' Fans 'Don't Understand' Why James Corden Will Be Part Of The Reunion

"It pains me to see Matthew Perry like this, he just seems off, gazing at the void, speaking slowly," wrote another.

"Hate to say it, but I'm sad and scared like hell for Matthew Perry," a third added. "Damn, Matthew Perry in those PEOPLE Friends interviews," a fourth commented.

Related: ‘Friends’: Line-Up Confirmed But Fans Want Paul Rudd and OG Cast Back

But the actor - who famously played Chandler Bing - in the hit 90's sitcom was defended by most.

One wrote: "Let’s not use the friends reunion to make fun of the way matthew perry looks these days. people age, funnily enough," one person wrote.

"Matthew has been through A LOT since friends wrapped up in 2004. be respectful instead of judgmental," a second added.

"Dear God, leave him alone. Stop applying your microscope to every aspect of his person while hungrily watching for him to fail, even a little bit. He says he's emotional and his words as a result aren't perfect. Stop judging him! He needs love from his fans, and he gets it from me," a third passionately commented.

Related: The Truth About Phoebe’s Twin Sister On ‘Friends’

Perry has been open about his past struggles with addiction, previously telling People things got "out of control and very unhealthy" after a 1997 jet-ski accident left him addicted to the painkiller Vicodin.

The recently engaged star admitted to BBC Radio 2 in 2016.

"I don’t remember three years of [the show]," he said. "Somewhere between Seasons 3 and 6 … I was a little out of it."

Perry will next be seen in the comedy Don't Look Up, which follows the tale of two astronomers, played by Leonardo DiCaprio and Jennifer Lawrence.

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