It was a great night for north London in general, with Arsenal youngsters Saka and Smith Rowe both putting on strong displays.
The latter was a late call-up after a series of injuries saw space open up in the squad, and the Croydon-born midfielder impressed against Albania and San Marino.
“I thought Emile has given a good account all week,” said Southgate.
“His tight control is exceptional and he has to continue what he is doing. We finished with a young side tonight.”