The Welsh Under-19 international midfielder joined the full-time ranks as a scholar in 2017, but was already a familiar face in the Under-18s having been in and around the side for the previous two years.

He played 13 competitive games for Blues in 2015/16, when still an Under-15, and chalked up another baker's dozen in 2016/17.

In November 2017, Stirk signed his first professional deal, which was for three years, with a fiurther one-year option.

During the 2018/19 campaign Stirk made 23 appearances for Blues Under-23s.