"I've known a little bit longer than other people. I've tried just as hard as everyone else to try to keep him going for a bit longer," Gerrard told the Liverpool Echo.
"He bounced a few things off me, but he's made the decision himself along with his family. He's basically taken no notice of what I said because I was trying for him to push on for another year.
"At times this season it has been difficult for him not being a regular starter because he has been a starter since he made his debut. "I can respect and understand his decision. We're all going to come to that moment in our careers.