Dublin have to focus on themselves - McMahon
Mayo colossus Aidan O'Shea has been tearing defences apart all summer but Philly McMahon insists Dublin will be focusing mostly on themselves in the build-up to their eagerly anticipated All-Ireland semi-final.
McMahon revealed he didn't watch the Connacht champions see off Donegal last weekend, but that the Dublin preparation will begin in earnest in the coming days.
"I haven't seen Aidan O'Shea playing this year," McMahon said at the launch of a new certificate in Dual Career Development by Griffith College in consultation with the Irish Institute of Sport.
"We just have to look after ourselves. We're confident in the players we have in our full-back line, me being one of them.
"I'd like to think I'm competent to mark whoever I'm up against .
"We look after ourselves and what we do in terms of our preparation.
"And we look at all the different ways and systems that we'll be coming up against. That's all we can do, if we start looking at anyone else, we could lose our own focus.
"The next couple of weeks will be about what I can do personally and what I will possibly come up against."
McMahon went on to insist that the league meeting between the sides earlier this year, which saw the Dubs run out easy winners, will have no influence on the semi-final.
"That day Mayo decided to go very offensive against us and left a lot of space at the back. It just clicked nicely - but they are not going to do that now, there's no way.
"Even though we beat them well that day, they probably learned a massive amount about how we play.
"Obviously, they've proved they have changed to get to the All-Ireland semi-final now - so I don't think we can expect what they did that day to happen in the semi-final."