Liverpool midfielder Jordan Henderson was a surprise participant in England's Friday training session, having linked up with the squad earlier than expected.
Having taken part in the UEFA Europa League final earlier this week, the midfielder and his clubmates were not initially expected to join up with the Three Lions until after Sunday's friendly against Turkey.
England v Turkey
5.15pm, Sunday 20 May 2016
Manchester City Stadium
Live on ITV
However, Henderson arrived at St. George's Park on Thursday evening and was on the training field with his teammates the following morning. Gary Cahill, who missed out on Wednesday's session, also trained.
Also in attendance at the National Football Centre on Friday morning was Eddie Jones, head coach of the England rugby team. Jones spent time with Three Lions manager Roy Hodgson before and after the session, where he watched closely as preparations for Sunday's game in Manchester stepped up.
England rugby coach Eddie Jones with Roy Hodgson
The squad will train at St. George's Park again on Saturday morning before heading north in time for the first of their three pre-EURO 2016 friendlies.
Tickets are still available for Sunday's game, priced from just £25 for adults and £10 for children – book at TheFA.com/Tickets.
