Barkley struck after an amazing 70-yard run.
"As modest as he is, he's loving it," Stones told the Liverpool Echo.
"He does stuff like that on a daily basis - out of the ordinary. We've just been waiting for him to do that in a game.
"Once he gets off on a run you're not stopping him. He's a powerful guy. I'm glad he got his goal and it's one to remember for him."
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