The former Wednesday player believes that the Portuguese boss rotates too much.
The duo have been in impressive form for Arsenal.
Sheffield Wednesday defeated Blackburn Rovers 2-1.
The Bayern Munich star has been linked with a move to Anfield this summer.
The emergence of Alex Iwobi has coincided with the Gunners resurgence, but many believe they are still short of quality in forward areas.
Without Rangers, Celtic have fallen short in one area according to Hamann.
The former Spurs captain believes Eric Dier's experience in midfield would see him vastly improved if he returned to centre-back.
Nottingham Forest were beaten 2-1 by Reading on Tuesday night.
Leicester City are vying for the Premier League title.
The ex-West Ham man says his former side will beat Arsenal 2-1.
A High Court judge has ruled that Navinder Sarao should be extradited to the US, where he will face charges carrying a maximum sentence of 380 years.
The eggplant has overtaken the banana as the rudest fruit in town. Now a new business that posts people a real one is collapsing under customer demand
Pundit says current Tottenham and Arsenal stars good enough for England's Euro 96 side, with a former Gunners midfielder among those missing out.