Paul Galvin has emerged as an injury concern for Kerry ahead of their Munster SFC quarter-final against Tipperary on Sunday, May 22.
Galvin sustained a hamstring injury in the Allianz Football League win over Down in Killarney last month and has not trained since being substituted during that game.
Kerry manager Jack O'Connor told the Irish Examiner: "I'm not sure (about Paul's availability for the Tipperary match), to be honest.
"I can't give a definitive answer other than to say he hasn't returned to training since the Down game. He has issues with it (the injury)."
O'Connor was pleased with how Kerry's recent training camp in Portugal went, with Dingle's Tommy Griffin, who missed the league campaign with a tendon injury, the only other player currently sidelined.
"Apart from Galvin, we came out of the weekend away fine. Tommy Griffin is still struggling. He hasn't done anything major as of yet," added O'Connor.
This year's Munster Senior Football and Hurling Championships will be launched at the Mallow GAA Complex on Monday, May 16.
Meanwhile, Eamonn Fitzmaurice is poised to take on the Kerry Under-21 football manager's role. The former Kerry defender and selector, who served as a member of O'Connor's backroom team for two seasons, is expected to be appointed at next Monday's meeting of the Kerry County Board.
Pat Spillane and Mickey Ned O'Sullivan were also thought to be in the running, but Fitzmaurice is seen as the preferred choice.
John Kennedy stepped down from the managerial position in the aftermath of Kerry's 2-24 to 0-08 Munster Under-21 final defeat by Cork last month.