The phrase "as another contender" is correct and usable in written English.
It can be used when referring to someone or something that is competing or vying for a position, title, or recognition alongside others.
Example: "In the upcoming election, she is entering the race as another contender for the mayoral position."
Alternatives: "as an additional competitor" or "as a rival participant".
That performance offered a minor concern for Murray, namely that Del Potro – with his huge serve and power play – can emerge as another contender for a place among the elite.
The Voice host Emma Willis has been tipped as another contender, as has Laura Whitmore, who was made the favourite by bookmakers Paddy Power, followed by Caroline Flack and former X Factor contestant Rylan Clark.
Also helping Kraft's prospects: Press reports overnight said the board of Hershey, which has been seen as another contender for Cadbury, was divided over whether or not to bid for the company and had yet to organize financing of an offer.
The brat hates accountability as does another contender within your inner dialogue: "the chicken". It's very brave to speak up in the name of your promises and commitments!
Jamie Woon's soulful, post-dubstep record, Making Time, is another contender, as well as David Bowie's posthumous nomination for the emotionally wrought Blackstar.
In polls taken before the South Carolina primary, Mr. Romney held a lead in Florida as large as 22 percent over Newt Gingrich and another contender, Rick Santorum.
The World Cup has yet another contender – as if we ever doubted that South Africa remained just that.
The period produced not only Joseph Furphy's Such Is Life (1903) but also the work of Henry Handel Richardson (pseudonym of Ethel F.L. Richardson, later Robertson), another contender as "the great Australian novelist".
Justin Rose, another contender, shot a 75, as did Jason Dufner, who made an early run Saturday.
John Parrott was seen as another possible contender.
Contrasting Mayer with Yahoo's interim CEO Ross Levinsohn (who was seen as another leading contender), Andreessen said this is "a big statement on Yahoo's part".
