The Borussia Dortmund man demonstrated his ability in the previous friendly against Austria, and his quality in midfield was missing as England struggled to break down Romania.
He was introduced with 25 minutes remaining and England scored their only goal of the match shortly after this.
Though only 17 years of age, Bellingham is deserving of a starting spot for Southgate’s side and must be trusted to perform at the tournament.
Bellingham, like Grealish, is not afraid to take risks when in possession and is capable of carrying out effective link-up play between midfield and attack.
Three to drop
The Aston Villa defender made a mistake within the first minute of the match and was lucky not to be punished for his error of judgement.
Mings let a loose ball run inside the penalty area, only for it to run out of play for an early corner kick.
He was also lucky not to give away a penalty against Austria for shoving striker Sasa Kalajdzic inside the penalty area.