Brad Barritt cannot wait to test himself in a "unique opportunity" against the World and Tri-Nations champions.

The tough-tackling centre marks the end of his first year with Sarries by running out at Wembley, in front of an expected crowd of more than 40,000, on Tuesday against the Springboks and he is determined to make the most of it.

Barritt said: "This game on Tuesday is a unique opportunity to test ourselves against probably the best team in the world. It's something I didn't really think I'd get the opportunity to do. There's going to be a lot of pride at stake.

"In terms of Sarries, there are a few guys that come from South Africa and I'm sure the English and Fijian guys are relishing the opportunity so we're not taking them lightly. I think they also had a bit of a wake up last Friday [losing to Leicester] so they're going to come out all guns blazing too."

The 23-year-old former Sharks back is now considered an important member of the side after taking time to settle following his arrival from South Africa.

His performances this year have attracted the attention of England because Barritt qualifies to play for them. With their recent injury crisis, Barritt, who was part of the Saxons tour in the summer, was widely tipped to earn a call-up to the squad for this month's internationals but he missed out. But the ambitious star remains committed to playing for England and insists if he keeps working hard he will eventually get his big break.

"At the time I was being talked about but you can't really read too much into that," Barritt admits. "I do realise I've only been here for a year so it would have been very presumptuous to assume I would be involved. Now I need to work hard and earn a spot in the team in the future.

"I'm fully committed to England for the foreseeable future. I really want to have intentions of playing for England and I just have to improve and work hard. Playing in a winning environment obviously helps your cause.

"We haven't had much contact [with the selectors]. We chatted in the August training camp and pre-season, so I'm just going to keep my head down and play hard and let my performances speak for themselves.

"It's gone pretty well and in that regard I'm pretty happy and ready just to kick on throughout the season," Barritt continued.

"There are certain areas which I want to improve and others where I've done really well. There are specifics within the game where you would like to be involved more and just growing within the team structure.

"I'm playing a certain role in the team at the moment which seems to be working and we're just trying to improve on it week in, week out."

The Men in Black make their hotly anticipated return to Wembley after a winning start back in September against Northampton. Sarries will play two more matches there this season, against Worcester and Harlequins, and Barritt is relishing the prospect of another big atmosphere in the famous venue.

"It's wonderful," he beamed. "Playing there earlier in the year against Northampton was a great opportunity and having watched a lot of football games there when I was younger in South Africa, it was just a dream come true. So to play the World champions there will be a great day."

Barritt knows the Guinness Premiership pace-setters will have to be at their best to upset the Springboks but he believes the success which has carried them to the summit will aid them on the big stage.

"At the moment they're [South Africa] benefiting from having years of experience together," he said. "In certain positions they've got really great world class players. They're in a really strong position and they have that winning attitude and know how to win at times.

"We've been concentrating mostly on the Northampton game but in terms of nullifying the Springboks it's going to come down to what we've done this season, what we've learnt in the conditions and the atmosphere at Wembley to impose our game."