Former Olympic medallist Roger Black believes Dai Greene offers Great Britain their best chance of winning track and field gold at this summer's Games but has also warned against writing off the hopes of reigning 400-metre champion Christine Ohuruogu.
Black, who won 400m and 400m relay silver at Atlanta in 1996, thinks GB have five "realistic" hopes of striking gold at the Olympic Stadium but feels Greene is the best placed of the lot at present.
Greene is the reigning world, European and Commonwealth 400m hurdles champion and the 26-year-old will be desperate to complete the clean sweep in London.
"On their day, there are five realistic chances of medals, if not gold medals, and that's Dai Greene in the hurdles, Mo Farah twice, Jessica Ennis and Phillips Idowu," said Black, who when pushed to pick a leading candidate added: "I wouldn't put my house on anybody, because I know how hard it is. But if I had to I would put it on Dai Greene."
Great Britain returned from Beijing with 19 gold medals four years ago but only one of them came in athletics, with Ohuruogu victorious in the 400m.
Since that triumph, the 28-year-old has suffered badly with injuries and a loss of form and it remains to be seen if she will be able to successfully defend her Olympic crown.
However, she sent out a warning to her rivals with a stunning display to help Britain win the 4x400m relay at the World Indoor Championship in March, and Black believes you write Ohuruogu off "at your peril".
Speaking at the launch of the 2012 Nature Valley games, Black said: "The person slipping under the radar, I think, is Christine Ohuruogu, who has been carrying an injury for two years and is now apparently healthy.
"When you're an Olympic champion and you're healthy - write her off at your peril, that's what I say.
"I'm not basing that on any facts, she still hasn't raced properly yet, but people that win major championships should never be written off.
"I may be completely wrong, but you sometimes have a hunch. If Christine is healthy I just think she's the kind of person you can't write off. Nobody's talking about her very much because she's had a very average last two years."
Another member of GB's silver-medal winning 4x400m relay team at the 1996 Olympics, Jamie Baulch, also has high expectations of Greene heading into London 2012.
Baulch is Greene's manager and he believes the Welshman's big strength is his mental attitude.
Baulch said:"I think he (Greene) has got the mental strength over all the British athletes.
"What I always say to people about Dai Greene is that he isn't the most talented, as in the fastest, because there are some Americans who are faster that Dai, and on the day they could produce a faster performance, but what Dai's got in his back pocket over everyone in the British team I would say is that consistency and also having that mental ability that when it comes to a final he doesn't care, and that is priceless.
"I've trained with Frankie Fredericks, with Linford Christie, Colin Jackson, Darren Campbell, Katherine Merry, just to name a few of them, and this guy is far beyond all of those people in mental ability."
Despite that though, Baulch believes Farah is probably GB's best hope for athletics gold in London.
He said: "Hot favourites are three athletes I think. Dai Greene after what he did last year in Daegu, Jess Ennis and Mo Farah.
"The one for me, even though I manage Dai, who is likely to win is Mo Farah. I think Jess has got some very stiff competition and so has Dai. If Dai gets it right on the day then he can do it, but there are some Americans out there who are obviously very quick, but with Dai's pedigree he's a serious competitor and he pulls it out when it matters. I think Dai's obviously in there in as well."
Baulch also praised 400m runner Martyn Rooney - another athlete under his management - but is less optimistic about the chances of Ohuruogu.
"I think she's going to struggle. But again she's got pedigree of winning it before, and at world champs, so again if she can get back, why not?" he said.
"I think over the last few years she hasn't competed at the level she has been at. Psychologically it is kind of difficult being injury-prone to get over that, so that's the hard bit there."