David McGoldrick is desperate to make up for lost time by forcing his way into Republic of Ireland manager Martin O'Neill's thoughts ahead of Sunday's friendly clash with England.
The 27-year-old Ipswich striker suffered a frustrating end to the domestic season after a niggling thigh injury prevented him from playing a part in his club's ultimately unsuccessful bid for promotion to the Barclays Premier League.
However, the England game, and the crucial Euro 2016 qualifier against Scotland which follows it next weekend, mean he still has a chance to prove his worth once again before he heads off on his summer break.
McGoldrick, whose only football since February came as a late substitute in the second leg of the Sky Bet Championship play-off semi-final defeat by Norwich, said: "I've had three months off, basically, through injury, so I am full of energy and enthusiasm.
"You get your drive back - sitting out watching the games, you realise how much you miss it and I am delighted to be called up.
"These two weeks couldn't have come soon enough. I just want to train and play and just be a part of the squad.
"Normally after the season finishes you put your feet up for a few weeks. But on this occasion, after the play-off defeat on the Saturday, I trained on the Monday to get ready for this.
"I have just been ticking over and we'll get time off after this. But for me, I have had three months out, so I have been wanting to build my fitness and keep building my fitness until pre-season, so this is a great chance for me to come and train, get the intensity and everything like that."
McGoldrick trained along with his team-mates at the Aviva Stadium on Tuesday morning after the session was switched to the Lansdowne Road venue a day after howling winds and driving rain greeted them on the coast at Gannon Park in Malahide, their usual base.
Bournemouth midfielder Harry Arter sat out after bruising a foot in training on Monday, but is expected to resume on Wednesday, while defender Paul McShane did only non-contact work as he continues his recovery from a gashed leg.
Defender Marc Wilson, winger Aiden McGeady and striker Shane Long joined up on Tuesday, with Jon Walters expected in on Wednesday and Wes Hoolahan later in the week because of a family bereavement.