Roy Hodgson has insisted that England's injury-blighted defence is capable of containing the threat of Montenegro strike duo Mirko Vucinic and Stefan Jovetic.
Lescott was initially omitted from the squad, while Smalling only has five international caps, but Hodgson has reiterated his faith in England's stand-in defensive lineup.
He said: "I just remind people that Joleon Lescott helped Manchester City to their first title in 40-odd years, and in Chris Smalling we have someone who's playing regularly for the champions-elect.
"It's not as if we've been forced to pick people who don't play at the highest level and I personally trust the pair of them."
Juventus forward Vucinic is Montenegro's all-time leading scorer and Jovetic has netted 12 goals for Fiorentina this season.