Let's be clear, it's not an extension, it's a doubling of his salary on the back of one good season. The Egyptian Clive Allen has absolutely rinsed them. This will protect their investment but in 5 years time they'll come to regret it, I fancy.
Pacey players tend to decline earlier than other players and he's not actually young anymore. At the same age Rooney had won the Champions League and the Premier League four times.
When Liverpool reach three decades without the league title the curly haired speedster will realise his career has passed him by. He's got maybe four seasons left, this is a crazy salary and one that far exceeds his talent, there will be a lengthy queue outside Henry's office of agents demanding the same recompense for their players.
Smacks of eggs in one basket, already a thin squad with a dozen players or so about to leave on a free, trying to offload deadwood but nobody wants them due to high wages, the same problem will occur when they realise the sppedy winger was a flash in the pan.
If I was a Liverpool fan I'd be very, very worried. On top of the Coutinho and Salah contracts but everyone else....it's just a mess.