The Liverpool captain had to wait patiently for his message to Alex Oxlade-Chamberlain to sink in because, apparently, Henderson had spent the last five years trying to convince his fellow England worldwide to switch clubs.
In a twist of irony, Oxlade-Chamberlain was named on the bench for Liverpool's clash with City at the Etihad on Saturday afternoon. But Henry, speaking on Sky Sports, was not convinced.
Despite having watched the 24-year-old plenty of times during his six years at Arsenal, Henry is still unsure exactly what Oxlade-Chamberlain does well.
"When you sign for a big club like Arsenal, an incredible club, you don't really envisage yourself leaving". In a one-hour training session with Klopp he's saying that.
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Asked later whether he thought such an instance had happened to his players at Liverpool - a question clearly referring to Alex Oxlade-Chamberlain, who joined the Reds days later - Wenger said: "I don't know. I think that's, in hindsight, probably a bit of a downfall that he can adapt to certain positions".
'He also need to bring something to the table in order to get better, it's not only the manager'. "Every single manager would agree that it's time to kick that out before the season starts and not continue to have players in the dressing room who are half out and half in".
Mark Schwarzer and Stuart Pearce both believe Liverpool is the flawless club for Alex Oxlade-Chamberlain.
Oxlade-Chamberlain has played in a right wing-back role recently for Arsenal but is also capable of playing in central midfield and on the wing, and Henderson believes he will succeed in whatever position he is picked in.
However, despite many pundits questioning the move, former England captain Pearce told The Debate the Reds are the ideal team for the player.