the french open has been increased by three million euros to over 28 million -lrb- £ 20.2 million -rrb- .
the singles champions will each receive 1.8 m euros -lrb- £ 1.3 m -rrb- , around 150,000 euros more than rafael nadal and maria sharapova picked up last year .
however the tournament , held at roland garros and beginning on may 24 , remains the grand slam with the lowest prize for the singles champion .