Manchester United manager Sir Alex Ferguson has hailed the impact of Robin van Persie following his last-gasp goal in their 2-2 draw with West Ham United on Saturday.
The Dutchman came on from the bench and netted the crucial goal in the second minute of stoppage time to secure a replay for United.
Van Persie latched onto a superb pass from Ryan Giggs before lashing a low finish past Jussi Jaaskelainen, and Ferguson believes that the striker brings some maturity to their front line.
"He's at a mature age now." he told reporters. "He's brought that maturity to our front line, and his performance after coming on was tremendous.”
The United boss also said that he never gives up hope of getting back into the game.
"You never do that with our team," Ferguson said.
"When you're 2-1 down with a couple of minutes left you just hope you get a break, but the manner of goal - the pass from Ryan Giggs and first touch from Robin van Persie and his finish - is absolutely world class, absolutely fantastic."
Van Persie is currently at the top of the goal scoring charts with 16 strikers in the Premier League this season since his move from Arsenal to United.