Joe Kernan believes it'll be Donegal who run Dublin the closest in the All-Ireland SFC this year, saying they're the sort of team that can "really test" the reigning four-in-a-row champions.
The former All-Ireland winning manager sees the Tír Chonaill county as having the best combination of pace, strength, and star power to deal with Jim Gavin's side, should they meet in an All-Ireland semi-final or final.
"There's a lovely balance about them," Kernan told the Irish Independent.
"They have strength, pace and mobility throughout the team, as well as a lot of brilliant individuals. Jamie Brennan has been excellent in attack.
"They're the sort of team to really test Dublin.
"I'd leave Michael Murphy in the full-forward line all the time. Defenders can't push up when you have him in there because he's capable of winning ball, even with two men on him.
"We saw him do it against the Australians in the International Rules two years ago. They tried to jam all the space around him, but still couldn't manage him.
"Declan Bonner has a good set-up there. The word is that Stephen Rochford is doing a great coaching job - it was a smart call by Declan to bring him in."
