Tottenham defender Steven Caulker has revealed it is an honour to be selected in the England squad for the upcoming World Cup qualifiers against San Marino and Montenegro.
Following Rio Ferdinand's withdrawal from the squad, manager Roy Hodgson has brought Caulker in to replace him.
"There are so many good centre-halves in England so to get called up into the senior side like this is brilliant and a great chance to hopefully learn and progress," he told Tottenham's official website.
The Spurs man already has already notched a goal for his country after scoring in his only game to date against Sweden in November.
The 21-year-old however, has struggled to gain a regular place in the Tottenham defence and admits this is a chance he needs to grasp.
"This is a massive opportunity and a massive moment for me," he added.
"Naturally it is a break that I must ensure I take full advantage of so I'm working hard in training and hoping for some game time."
Caulker faces stiff opposition against the likes of Chris Smalling, Steven Taylor and Joleon Lescott if he wants a starting place for the the game against Montenegro tonight.
And with talks of Michael Carrick possibly playing in the centre of defence, Caulker is eager to add to his single cap despite his age.
"I know I'm young and I'm still learning but I am determined not to rest on my one cap," he explained.
"Every call-up, every training camp takes me closer to that dream."