Tomas Ó Sé expects Galway to ask serious questions of Kerry in their Super 8 clash on Sunday if they bring their attacking game.
The Tribesmen have been criticised for being overly-defensive this season and Ó Sé feels they need to throw off the shackles.
"This match is huge for two young teams. Kerry have swatted Clare and Cork aside. Directness and pace is a huge step for Kerry this year. It's different. Questions persist over the defence but the forward line has been sublime," the former Kingdom star said on RTÉ Radio 1's Morning Ireland programme.
"The big question is how Galway approach it; will they play like the first half against Roscommon where they only put up five points or the second half where they outscored them 0-11 to 1-1.
"I think they are still unsure what way to play. Kevin Walsh needs to show a bit of courage here and go for it like they did in the second half against Roscommon. It will be very close if they do. If Kerry keep tabs on Conroy, Comer and Walsh, then Kerry will win."
Ó Sé is also tipping Dublin, Tyrone and Monaghan to make winning starts to their Super 8 campaigns this weekend.
You can follow all of this weekend's action from the All-Ireland SFC Super 8s and All-Ireland SHC quarter-finals on the hoganstand.com live match tracker.