“Luis is delivering week in, week out and that is the sign of a world-class player,” Allen told the Liverpool Echo
“He is scoring goals for fun, creating goals and as a team we are killing teams off.
“His new contract was a massive boost for all of us players – not only going into the Cardiff game but also for the rest of the season.
“For him to commit his future here is fantastic news for the club and for the supporters. That is the kind of signal you send out when you want to attract some big players.
“It seemed to be concluded really quickly which shows Luis' intent and desire to be at this club.”