Mayo manager James Horan said the build-up to their Connacht SFC semi-final was highly unusual in the wake of positive Covid-19 cases within their squad.

But it ultimately mattered little as the Green and Red strolled into another Connacht final against Galway in two weeks' time after coasting past Leitrim.

The preparations for Horan and his squad were disrupted after confirmation that this week that they were dealing with a Covid situation.

"It was very different to what you'd normally have for a Connacht semi-final," the Mayo manager told RTÉ's Sunday Sport.

"[It was] very challenging for the players but they were amazing. They had to go through some testing regimes but they were excellent. They dropped whatever they were doing to make sure we followed HSE guidelines.

"You saw their focus when they came out on the field today."

Tommy Conroy of Mayo in action against Conor Dolan of Leitrim

The game was realistically over as a contest before the break as Mayo found the net three times through Darren Coen and a Darren McHale brace.

Leitrim battled gamely in the second half but the defending champions were able to convert a 16-point half-time lead into a 24-point winning margin after further goals from Ryan O'Donoghue and Tommy Conroy.

"We prepare as well as we can, regardless of the opposition or competition," Horan said of the one-sided nature of the contest.

"We try to start the game right and we've done that now consistently for a while. I thought it was a solid opening quarter where we built up a six or seven point lead, and then got a goal towards the end of it.

"We just keep trying to do the right things during a game and where the score ends up, it ends up. You can't really do anything about it [the opposition].

"We've a lot of players to come back into training on Tuesday and hopefully that will make up for any lack of competitiveness today.

"The focus of the guys", he said when asked about the most pleasing aspect.

"The pressure we put on the ball was excellent throughout the game."

Horan confirmed that knocks to Michael Plunkett and Jordan Flynn weren't serious but conceded that it was unlikely Cillian O'Connor would be available "for the foreseeable future" as he continues his recovery from an achilles tendon injury suffered in the Allianz League semi-final against Clare.