Actor Sylvester Stallone provided a critical update on fellow-actor Bruce Willis since being diagnosed with aphasia.

According to the 75-year-old “Expendables” actor, Willis has been “incommunincado” since the diagnosis.

“Bruce is going through some really, really difficult times. So he’s been sort of incommunicado. That kills me. It’s so sad,” Stallone said about the 67-year-old actor in a report from The Hollywood Reporter.

Aphasia is a condition that can affect a person’s ability to speak, write and understand language, with treatment including speech and language therapies, according to the Mayo Clinic.

It was in March when the diagnosis of Willis was revealed. Stallone would then put up a heartfelt post on Instagram, sending his well-wishes to his pal.

“We go back a long way, praying for the best for you and your wonderful family,” Stallone posted along with a photo of Willis.

Willis and Stallone met several years ago and became involved in Planet Hollywood in 1991. The same restaurant is the one being endorsed by Willis’ ex-wife, Demi Moore and another “Expendables” actor, Arnold Schwarzenegger.

It was in 2010 when Willis and Stallone appeared in “The Expendables.” However, they had a falling out and a feud ensued that resulted in the 67-year-old “Die Hard” actor pulling out of the third installment of the film.

Harrison Ford was cast to take the place of Willis instead.

However, the rift between Stallone and Willis would be settled years after that and the two have become good friends ever since.

It was also in March when Emma Heming, along with Moore and their kids released a joint statement that Willis was retiring due to health issues.

“To Bruce’s amazing supporters, as a family we wanted to share that our beloved Bruce has been experiencing some health issues and has recently been diagnosed with aphasia, which is impacting his cognitive abilities,” an Instagram post read.

“As a result of this and with much consideration Bruce is stepping away from the career that has meant so much to him,” they continued. “As Bruce always says, ‘Live it up’ and together we plan to do just that.”

Bruce Willis, Sylvester Stallone (Photo Credit: Alberto E. Rodriguez/Getty Images) Actors Bruce Willis and Sylvester Stallone arrive to the premiere of the HBO documentary 'His Way' on March 22, 2011 in Hollywood, California.