Manchester United kept its hopes alive in the FA Cup, pulling out a 2-2 road draw against West Ham United Saturday thanks to Robin Van Persie's injury-time goal.

United struggled to avoid elimination from a competition it has won a record 11 times due in part to fielding a mix-and-match line-up of regular starters and players that normally come on as substitutes.

Midfielder Tom Cleverley gave United a 1-0 lead in the 23rd minute with a perfectly placed shot into the bottom corner.

But James Collins, who caused major headaches for the Red Devils throughout the third-round match, evened the score just minutes later when his powerful header off a floating pass from Joe Cole gave goalkeeper David De Gea no chance.

Then in the second half West Ham took the lead for the first time on a goal that was nearly identical to its first, with Collins once again heading a pass from Cole into the back of the net.

But Alex Ferguson made the right moves late in the match to give his team a spark, replacing Paul Scholes and Javier "Chicharito" Hernandez with Van Persie and Ecuador's Antonio Valencia.

A few minutes later, he substituted Ryan Giggs for Chris Smalling.

The changes paid off when Van Persie received a floated pass from Giggs and fired a shot that beat Finnish goalkeeper Jussi Jaaskelainen just before the referee blew the final whistle.

The draw means that the third-round match in this 141-year-old knockout competition will be replayed. EFE