If Arsene Wenger had Harry Redknapp’s tactical nous then Arsenal would win the Premier League, according to Paul Merson.
The Sky Sports pundit, who played under both men during respective spells at Arsenal and Portsmouth, says he rates Redknapp higher than Wenger when it comes to tactics.
"People say he's a wheeler-dealer and it's so disrespectful," he said on A League Of Their Own.
"Tactically, he's one of the best I've worked with. If Arsene Wenger had Harry Redknapp's tactical nous, Arsenal would win the league."
Redknapp was sacked by Birmingham City last month as the team struggled at the wrong end of the Championship table.
Despite his recent struggles in the hot-seat, Merson believes the former Tottenham, QPR and Portsmouth boss can be hailed as an all-time great.
When asked what his best achievement as a player was, Merson replied: "Winning the league at Portsmouth. We were 33/1 rank outsiders to win the league that year.
"We won our first game at home and I thought we'd be alright and then went to Crystal Palace. We were 2-0 down at half-time and it could've been 10-0. I thought 'what have I done coming here - this is going to be embarrassing.'
"Harry came in at half-time and took three men off, put three at the back, five in midfield with three rolling attackers and we won 3-2.
"That's when I knew he was a great manager."
You can watch the latest episode of A League Of Their Own on Sky One on Thursday night at 9pm.