It's all on the line at Hyde Park this afternoon in this final round All-Ireland group stage encounter, which could see Mayo top the table or exit the Championship, while Jim McGuinness' Donegal are battling to both stay alive and avoid a preliminary round encounter away to Dublin or Kerry next weekend, which could be the case if they finish third in the group. There's little love lost between these sides going back to the 2012 All-Ireland final with this the latest installment of a fierce rivarly.