Manchester United head to Wembley as defending champions after beating Spurs on penalties last March and Betfair is giving away a free bet to see if they can lift the first trophy of the season again when they take on Aston Villa on Sunday, with kick-off at 1500.

Sir Alex Ferguson's men have the overall advantage in the head-to-head record between the two sides with 75 wins to 43, but not in this competition as Villa hold a 4-1 lead with one draw.

These two clubs clashed in the final of this tournament in 1994, with United going for the domestic treble, but it was the Villains who ran out comfortable 3-1 winners.

The midlands giants also disposed of an under-strength Red Devils side 3-0 the last time they crossed paths in 1999, while they ended a 24-match winless run in the league with a 1-0 success at Old Trafford in December - followed up by a 1-1 draw in the reverse fixture earlier this month - to suggest the tide may have turned.

United, who have beaten top-four chasing Man City and Spurs to make it this far, will be without Rio Ferdinand and Anderson through injury, while Luis Nani is still serving a domestic ban for a red card picked up at Villa Park but in Wayne Rooney, the champions do have a proven match winner.

The England ace scored twice against West Ham in midweek as United bounced back to winning ways to take his season tally to 27, and he is sure to be prominent again in the goalscoring markets when considering the free bet.

Martin O'Neill's men have banged in 10 goals in the three games since the United draw but have conceded five in the process and were pushed by Championship-side Crystal Palace all the way in their FA Cup fifth-round clash.

There are plenty of markets available as regards to the free bet, including the method of victory, the in-play markets and whether either side will keep a clean sheet, plus many more.

Both teams to score - 3pts @ 8/11

Over 2.5 goals - 2pts @ 21/20

Man Utd to score in both halves - 1pt @ 15/8