Newcastle boss Eddie Howe didn't think twice naming Aidan Harris on the bench for last week's draw at Champions League opponents AC Milan.
The 16 year-old goalkeeper was called up to sit on the bench after Martin Dubravka pulled out due to a bug in the morning.
Harris was with Newcastle in Milan for their UEFA Youth League tie, but instead made the senior step up for the 0-0 draw at San Siro stadium.
The teen has come through the youth system at Newcastle and featured in the EFL Trophy so far this season.