Iraola, fresh from leaving Bournemouth, is expected to replace Arne Slot, who was sacked by Liverpool after two seasons in charge.
The Spaniard led the Cherries to a sixth-placed finish last season, meaning they qualified for the Europa League in a feat that has seemingly impressed the Reds' board.
With more news expected to come in the following weeks, Semenyo has revealed that the Liverpool squad could expect under Iraola’s guidance if he does land the job.
"The way he structured the weeks, we didn't really have any days off, nothing. It's very hard going from having Wednesday and Sunday off to having no days off.
"We would play on the Saturday, train on Sunday. The players that were in the starting XI would do like the first maybe 30-40 minutes of the session, so you're hanging, your legs have gone."
The Manchester City winger continued: "You're doing the possession, you have to run around, you're thinking 'oh dear'. Even now, (he was speaking April 2026), it hasn't changed. Some of the boys (saying) 'no day off this week again' in the group chat. It still hasn't changed!
"But we set up against big teams, playing Man City, Arsenal. It's not like we stay in a mid-block. Everyone's man for man.
"You're thinking, 'we're going to get exposed here,' but once you adapt to it, yeah. You see how Bournemouth won at the weekend (against Arsenal). That's what it was like for the three years I was there.”
There had been criticism of Liverpool's lacklustre training sessions last season, with many fans complaining about a lack of intensity and urgency.
Iraola could change this, but the 43-year-old is also wanted by Crystal Palace, AC Milan and Bayer Leverkusen, so Liverpool must move quickly to secure him.