BREAKING EXCLUSIVE: Lamar Odom Opened His Eyes and Was Able to Speak

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ET has learned that Lamar Odom has opened his eyes and has been able to communicate.

According to Alvina Alston, a spokesperson for Odom's aunt, JaNean Mercer, the 35-year-old athlete was able to open his mouth and speak on Friday.

When his doctor asked how he was doing, Lamar gave a thumbs up and responded, "Good morning."

Earlier in the day, a source told ET that when asked if he wanted to see his children, the former NBA star communicated "Yes,". It is unclear if he spoke or used body language in that conversation.

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Odom has two children with ex-girlfriend Liza Morales -- 17-year-old Destiny and 13-year-old Lamar Odom Jr. The three, along with Odom's aunt JaNean, flew out of New York City on Wednesday to be by the basketball pro's side at Sunrise Hospital in Las Vegas.

The kids broke their silence for the first time on Thursday. "Thanks for your outpouring of prayers and support for our dad," Destiny and Lamar Odom Jr. said in the statement to ET. "We are here with our family and friends. We appreciate everyone respecting our privacy at this time. We ask for your continued prayers."

Odom has been at Sunrise for three days, after being found unconscious on Tuesday at the Love Ranch, a legal brothel in Crystal, Nevada, where he allegedly spent $75,000 during a four-day stay.

His estranged wife, Khloe Kardashian, has remained by his side since Tuesday night, with many of her family members -- including her mom, Kris Jenner, and sisters, Kim Kardashian, Kourtney Kardashian and Kylie Jenner -- joining her at the hospital, though they have since left Vegas.

WATCH: Lamar Odom & Liza Morales Settled Concerns Over Two Children Last Month

After suffering a heart attack and organ failure, Odom was placed in a medically induced coma and on dialysis on Wednesday. He opened his eyes after about 72 hours in the coma, and ET was previously told he was in critical condition.

ET will update with more information as it comes in.