Duncan Alexander is the co-founder of the OptaJoe Twitter account, one of Britain's top football statisticians and commentators who has almost 1m followers. He live tweets during games with his trademark blend of incisive analysis and droll humour. He works for Perform, one of the world's leading digital sports content and media companies. His first book, OptaJoe's Football Yearbook was published in 2016. Follow Duncan on Twitter @OptaJoe and @oilysailor.
For anybody interested in football this is pure nectar. * Evening Standard * The wealth of information Opta have at their fingertips makes them the finest resource in football * Guardian * You'll love this if you love football trivia. * BBC 5 Live * Thankfully, readers of OJFY should ensure that the calibre of football opinion improves. * News North Wales *