Mayo's Fergal Boland in action. Player pic: Sportsfile
It was a first dent in Andy Moran's league armour when Mayo was defeated by Donegal after winning their first two matches against Galway and Dublin.
The final score was 1-19 to 0-14. An eight point defeat often throws up questions.
Mayo's early season kicking style didn't work out in windswept Letterkenny, but that wasn't the main point as Andy Moran tweaked his team's style especially in the second half.
There are many talking points regarding the team's and players' performance. We had a look at some stats and facts from the game as one player had a massive influence coming off the bench.
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