Donegal's Michael Murphy: Protein shake the sole supplement I take

All-Ireland-winning Donegal football captain Michael Murphy has revealed that the only supplement he takes is a simple protein shake after gym sessions.

The amount of supplements being consumed by top GAA players has come under a microscope following Kerry footballer Brendan O’Sullivan’s anti-doping violation after last year’s league final.

O’Sullivan was initially informed of a four-year ban by Sport Ireland, though he served just 21 weeks in total after it was accepted by authorities that he unwittingly consumed a contaminated product.