Former Liverpool player Jermaine Pennant was taken off air during a TV show after his performance "failed to meet production standards".
The 37-year-old winger was a panellist on a Sky Sports transfer show and appeared confused when talking about Romelu Lukaku's move to Inter Milan and his time at Liverpool.
He was then taken off air with Sky Sports confirming the decision was taken to pull Pennant from the programme "because his performance on-air failed to meet our production standards".
Pennant also appeared to be ignored by fellow panellists as he struggled to answer - reports Birmingham Live.
He was also asked about his time at Liverpool, but did not reply in full sentences and left viewers concerned.
A Sky Sports Spokesman told Sportsmail: " Jermaine Pennant was a guest on Sky Sports News this morning.
"A decision by our production team was made to take Jermaine off the programme before its conclusion because his performance on-air failed to meet our production standards."
And now Pennant has apologised for his actions in a statement over Twitter.
He said: "I apologise to everyone at Sky Sports and the viewers for my below-par performance today, the channel have given me opportunties over the past months and I have never let them down like this before.
"I'm gutted because only yesterday I had a really good stint on Talk Sport.
"There are no excuses here, I am eager to have a career in TV and hope I haven't done irreparable damage.
"Contrary to speculation on social media I didn't go out last night, I've been trying so hard to be professional over the past period, I've let down a lot of people and it won't happen again.
"Once again I apologise sincerely."
Pennant appeared as a contestant on Celebrity Big Brother when his playing career ceased.
He came under scrutiny for keeping his marriage to glamour model Alice Goodwin, who he tied the knot with in 2014, a secret from Chloe Ayling, during the show.