Eamonn Fitzmaurice refused to make any excuses for Kerry's nightmare start to the Allianz Football League, stating his team simply did not perform against Mayo.
The defeated All-Ireland finalists dominated proceedings at Elvery's McHale Park and were deserving 0-15 to 1-06 winners.
Indeed, Kerry failed to register a single point in the second half and their dismal performance was compounded by Anthony Maher's sending off with over 20 minutes remaining.
Fitzmaurice was honest in his appraisal of Kerry's performance, claiming they were well and truly beaten by a better Mayo side.
“A disappointing day out. We didn’t play well. We didn’t perform. Simple as that. We’re not going to be hiding or looking for excuses. A poor performance, the lads are disappointed," Fitzmaurice is quoted as saying in the Irish Examiner.
“We have to regroup and look forward to next weekend. It was always going to be a tough fixture with Dublin coming down having played so well [v Cork], us having played so poorly today. Looking for points next weekend it makes it tougher but we have no excuses.”
Kerry started the season by claiming the McGrath Cup but they looked sluggish throughout the match in Castlebar and Fitzmaurice was quick to dismiss the suggestion that his side were lacking fitness.
“I wouldn’t think so. The lads have a good bit of work done," he declared.
“This season above all others when we were able to get back on December 8. We would have a lot more work done than we would in other years.
“So I don’t think it was a fitness issue. We looked a bit leggy. Mayo looked sharp and fit. It’s a work in progress.”
Next up for Kerry is the visit of Dublin to Killarney and it could prove another difficult outing for the Kingdom as Tomas O Se, Paul Galvin, Declan O'Sullivan, Eoin Brosnan, Colm Cooper and Kieran Donaghy are all expected to miss out.
For Fitzmaurice it is far from ideal but he is hopeful his side can respond by lifting themselves for the visit of Jim Gavin's squad.
"Some of the younger players coming through we have a lot of time for them. Part of developing as a player is having experiences like today and realising what it takes at this level," Fitzmaurice added.
"It’s going to be a wake-up call for some of the lads but in terms of their long-term development it’s part of the thing, this can happen.
"We have plenty of time for the lads in the panel and we think that they bring a lot to the table and you can have days like that."