Pics: One of the biggest FA Cup upsets of all time

Substitute Ben Watson scores an injury-time winner to give Wigan

Athletic a sensational 1-0 win over Manchester City at Wembley Stadium

on Saturday in the biggest FA Cup final upset in 25 years.

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa celebrates scoring their first goal Action Images via Reuters / Lee Smith

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa celebrates scoring their first goal Action Images via Reuters / Lee Smith

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa looks dejected after Arsenal’s Aaron Ramsey (not pictured) scores their second goal Action Images via Reuters / Lee Smith/Files

CAPTION CORRECTS THE DATE - FILE - In this Saturday, May 27, 2017 file photo, Chelsea's Diego Costa celebrates scoring his team's equalizer during their English FA Cup final soccer match against Arsenal at the Wembley stadium in London. Atletico Madrid and Chelsea on Thursday, Sept. 21 say they have reached an agreement for the transfer of striker Diego Costa to the Spanish club. Chelsea says it gave Costa permission to travel to Madrid to undergo a medical and finalize the contract details with his former club. (AP Photo/Matt Dunham, file)

Conte's Chelsea side have lost their past two meetings with Arsenal in the FA Cup final and the Community Shield

Mertesacker wants Arsenal to repeat Wembley win against Chelsea

Arsenal's Per Mertesacker wants his side to repeat their FA Cup final and Community Shield success over Chelsea when they meet at Stamford Bridge on Sunday.

Mertesacker wants Arsenal to repeat Wembley win against Chelsea

Arsenal's Per Mertesacker wants his side to repeat their FA Cup final and Community Shield success over Chelsea when they meet at Stamford Bridge on Sunday.

Mertesacker wants Arsenal to repeat Wembley win against Chelsea

Arsenal's Per Mertesacker wants his side to repeat their FA Cup final and Community Shield success over Chelsea when they meet at Stamford Bridge on Sunday.

Chelsea's Eden Hazard before training

Britain Football Soccer - Chelsea Training - FA Cup Final Preview - Chelsea Training Ground - 24/5/17 Chelsea's Eden Hazard before training Action Images via Reuters / John Sibley Livepic

Chelsea's Eden Hazard before training

Britain Football Soccer - Chelsea Training - FA Cup Final Preview - Chelsea Training Ground - 24/5/17 Chelsea's Eden Hazard before training Action Images via Reuters / John Sibley Livepic

Chelsea's Eden Hazard before training

Britain Football Soccer - Chelsea Training - FA Cup Final Preview - Chelsea Training Ground - 24/5/17 Chelsea's Eden Hazard before training Action Images via Reuters / John Sibley Livepic

Chelsea's Eden Hazard before training

Britain Football Soccer - Chelsea Training - FA Cup Final Preview - Chelsea Training Ground - 24/5/17 Chelsea's Eden Hazard before training Action Images via Reuters / John Sibley Livepic

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Eden Hazard in action with Arsenal’s Granit Xhaka Reuters / Andrew Yates

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Arsenal’s Alexis Sanchez celebrates scoring their first goal Reuters / Andrew Yates/File Photo

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Eden Hazard in action with Arsenal’s Nacho Monreal Action Images via Reuters / Lee Smith

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Arsenal’s Alexis Sanchez celebrates by spraying sparkling wine at the end of the match Action Images via Reuters / John Sibley

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa celebrates scoring their first goal Action Images via Reuters / Lee Smith/files

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa celebrates scoring their first goal Action Images via Reuters / Lee Smith

FILE PHOTO - Arsenal v Chelsea - FA Cup Final

FILE PHOTO - Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Arsenal’s Alexis Sanchez celebrates scoring their first goal Reuters / Andrew Yates

FILE PHOTO - Arsenal v Chelsea - FA Cup Final

FILE PHOTO - Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s N’Golo Kante in action with Arsenal’s Alexis Sanchez Action Images via Reuters / John Sibley

FILE PHOTO: Arsenal v Chelsea - FA Cup Final

FILE PHOTO: Arsenal’s Alexis Sanchez celebrates by spraying sparkling wine at the end of the match Action Images via Reuters / John Sibley

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa celebrates scoring their first goal Action Images via Reuters / Lee Smith

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa celebrates scoring their first goal Action Images via Reuters / Lee Smith/Files

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Chelsea’s Diego Costa pours water over his faceAction Images via Reuters / Lee Smith

Arsenal v Chelsea - FA Cup Final

Britain Soccer Football - Arsenal v Chelsea - FA Cup Final - Wembley Stadium - 27/5/17 Arsenal’s Alexis Sanchez celebrates scoring their first goal Reuters / Andrew Yates/Files

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