[10] Brian McEniff gave McGee his Donegal senior debut against Fermanagh in the 2005 Dr McKenna Cup on 2 January 2005.

McGee was out injured for four weeks after that game but when he returned he established himself as Donegal's first-choice full-back in the team's march towards the 2012 All-Ireland Senior Football Championship Final.

[21] In 2013, McGee made his 100th appearance for Donegal in the county's opening National Football League against Kildare at Croke Park, becoming the sixth footballer then playing for the team to reach that mark following Christy Toye, Colm McFadden, Rory Kavanagh, Karl Lacey and McGee's own brother Eamon (they were also the first set of brothers to ever reach 100 Donegal appearances).

[22] In 2016, he lost his appeal against the red card and a subsequent two-match ban picked up in the Ulster Championship quarter-final win over Fermanagh.

[23] Two years later, he lost his appeal against the red card he picked up for an alleged knee up the back of an opponent in the Ulster SFC semi-final win over Down.

[25] He equalled Colm McFadden's record of 173 appearances for Donegal when he came on as a second half substitute in the final round of the 2019 National Football League, a victory over Kildare.

[29] Shortly before his 37th birthday, and with a record 195 appearances for the team, McGee announced his retirement from inter-county football in an exclusive interview given to Frank Craig and published in the Donegal News on 29 September 2022.

[37] Squad as per Gaoth Dobhair v Scotstown, 2018 Ulster Senior Club Football Championship final, 2 December 2018 Donal Reid