Upson, 31, has emerged as Capello’s first-choice to fill in for injury-plagued Ferdinand this season, but has now come under pressure from Tottenham pair Ledley King and Michael Dawson.
“Going on the last few internationals I’d have to say I do feel like I am the next in line,” Upson said.
“But football changes very quickly so you can never take that for granted. It’s important you keep on top of your game and keep wanting to improve to secure your place.”
Here’s how the contenders compare.