The 17-year-old former Crookhorn School pupil has been on the Blues’ books since the age of eight

A Waterlooville youngster is in the frame for his international debut after receiving a maiden call-up.

Pompey’s Ashton Sizer was among seven players put on stand-by for Wales’ Under-19s ahead of the launch of this week’s friendly tournament in Spain.

Ashton Sizer has been at Fratton Park since the age of eight. Picture: Graham Hunt/ProSportsImages | Graham Hunt/ProSportsImages

The second-year scholar has yet to feature for Pompey, although was named as an unused substitute for three Championship matches in the first half of the 2025-26 season.

Well regarded by Portsmouth

The former Crookhorn School pupil is highly regarded at Fratton Park, able to operate at centre-half or right-back, and has featured nine times for the Academy this season.

Ashton Sizer in action for Pompey against Aldershot in July. Picture: Jason Brown | Jason Brown

Now Sizer, who qualifies for Wales through his Barry-born grandfather, has linked up with Wales Under-19s at their 10-day training camp in Marbella, Spain.

Ahead of their Euro qualifying campaign in November, the Dragons are to face the USA at the Banus Football Centre on Tuesday, before taking on Norway (October 2) at the Marbella Football Centre.

The Spanish tournament will conclude on Monday, October 5 with a fixture against Northern Ireland.

For Sizer, it will be the opportunity to catch the eye ahead of November matches against Finland, Iceland and Spain in the second round of the Euro qualifying campaign.

‘Ash is a really dominant centre-half’

‘Ash is a really good size for a 17-year-old and still a first-year pro. He played last season extensively for the Academy (under-18s) as an under-16.

‘He has come through and done brilliantly well, training with us quite a few times. He’s also been on our bench twice now and, with the issues we’ve had at centre-half, it was great to get him involved on Saturday.

‘Ash is a really dominant centre-half, very, very good on the ball as well, while has played a bit as a right-back when coming through, particularly when he first started playing for the Academy.

‘But he’s a dominant ball-playing centre-half who isn’t afraid to go and put his head in where it hurts.’

Sizer, a former Pompey season-ticker holder, has been with the Blues since the age of eight, while also featured in the summer friendly against Farnborough, which consisted entirely of Academy players after Mousinho’s first-team pulled out.

He featured in the centre of defence in July’s admirable 1-1 draw for Piero Mingoia’s promising side against the National League South outfit, watched by 1,178.