Which Sunderland kit sponsor has made the most cash for SAFC?

But while shirt sales add to football clubs' coffers, millions more is made on sponsorship deals for their official kit.

SAFC has made £39.5million since the 09/10 season, according to data from Statista.

The highest amount listed for Sunderland came from the 2012/13 season, where Tullow Oil promoted the Invest in Africa initiative - paying £20million to have the slogan emblazoned on the club's kit.

It was the first time in English football that a sponsor promoted a cause rather than a commercial product to the Premier League’s then worldwide audience of 4.7billion people.

Here is a breakdown of cash raise from club sponsorship, as published by Statista:

2009/10 - Boylesports, £2.5million

2010/11 - Tombola, £1million

2011/12 - Tombola, £1million

2012/13 - Invest in Africa, £20million

2013/14 - Bidvest, £5million

2014/15 - Bidvest, £5million

2015/16 - Dafabet £5million