He joined League One side Tranmere Rovers on loan at the beginning of the 2010–11 season; Tranmere managerLes Parry said that "Kayleden is a good young prospect who I've seen play a lot for West Brom's reserve side. He's strong, athletic and has a good scoring record."[4][5] He made his Football League debut on 14 August in a goalless draw with Huddersfield Town at the Galpharm Stadium.[6] He started his first Football League game away to Dagenham & Redbridge on 28 August.[7] On 9 November, he joined Dagenham & Redbridge on a one-month loan,[8] making his debut for the club on 20 November in a league match against Oldham Athletic.[9] The deal was later extended by a further month and ended on 9 January.[10] On 21 January 2011 he joined Jim Gannon's Port Vale on a one-month loan, along with Romaine Sawyers.[11] The pair returned to The Hawthorns after the loan spell ended, with Brown having made four substitute appearances at Vale Park.[12] At the end of the 2012–13 season he was released by West Bromwich Albion due to a serious knee injury.
Brown has received call-ups for the Wales youth squads at both U17 and U19 levels. He received his first international call-up for an under-17 friendly tournament in July 2008.[15] For the under-19 side, he scored a hat-trick past Andorra in a 6–0 win on 15 November 2008.[16] He also scored in games against both FYR Macedonia and Liechtenstein.[17][18]
^"Brown loan extended". daggers.co.uk. Dagenham & Redbridge Football Club. 9 December 2010. Archived from the original on 24 July 2011. Retrieved 13 January 2011.