The 23-year-old joins on dual registration from Leamington and is expected to be with the Glassboys for at least the next month.
Alex began his career at Aston Villa, going on to feature regularly for the U23's in Premier League 2 action.
He then joined Brackley Town on loan in March 2019 for the remainder of the 2018/19 campaign before being freed that summer.
Alex signed for Kidderminster Harriers ahead of the 2019/20 season and he spent two years with the Worcestershire outfit in campaigns hit by the covid pandemic outbreak.
In July 2021 he joined Brackley Town, but in November 2021 he linked up with fellow National League North side Leamington on loan, going on to make eight appearances with the Brakes before returning to Brackley for the remainder of the 2021/22 season.
He made the switch to Leamington in the summer of 2022; however, he has found his opportunities to start games limited in recent weeks.
See also https://leamingtonfc.co.uk/index.php/home/11-news2/2041-prosser-joins-stourbridge-on-loan