It's a former world No.1 versus the underdog as Jelena Jankovic and Melanie Oudin prepare to go at it in the Aegon Classic 2012 women's singles final.

The final, which takes place at 11am on Monday 18th June, is the second meeting between the pair with Oudin holding a 1-0 lead in their head to head.

Their first and only previous match-up came on grass, at Wimbledon 2009, where Oudin won in the third round, on her way to the last 16.

The 20 year old American is competing in her first ever WTA final and becomes the fourth qualifier to reach a singles final on the tour this year. In all three previous occasions the qualifier went on to win the title.

Ranked at 208 in the world Oudin becomes the lowest ranked player to reach a final since the 2010 Australian Open and will bid to be the first player ranked outside the top 200 to win a title since the 2009 US Open.

In contrast, Jankovic, the world No.22 and former world No.1, is competing in her 27th WTA singles final. The Serb won in Birmingham in 2007 and regardless of the result today should return to the world's top 20.

On the grasscourts at Wimbledon Jankovic has never been past the fourth round in the singles event but did win the mixed doubles title with Britain's Jamie Murray in 2007, just after winning the singles title at Edgbaston.