Paul Rouse: While Dublin are still the side to beat they are no longer seen as invincible

Dublin's John Small with Ryan O’Donoghue, Conor Loftus, Kevin McLoughlin and Diarmuid O’Connor of Mayo during the 2021 All-Ireland SFC semi-final. Picture: INPHO/James Crombie
The best thing about Dublin losing in 2021 is what it now means for the 2022 All-Ireland Senior Football Championship.
This is a championship that suddenly looks wide open.