188BET are challenging our own Mark O'Haire (@MarkOHaire) and Racing Post superstar Mark Langdon (@MarkLangdon) to a punting duel.
Manchester United v Chelsea | Easter Sunday 16:00 | Sky Sports
Here the the guys discuss their best bets for Sunday's big Premier League clash from Old Trafford.
Our own Mark O'Haire leads 33-26 in the series.
Can You Beat The Two Marks? Win A £30 Free Bet
Grab a £30 free bet if you beat both Marks or a £10 free bet if you beat just one of them.