Betfair Ambassador Paul Nicholls will saddle four runners at Newbury on Saturday and one at Kelso...
He says: "He made a striking impact when hacking up at Newbury on his racecourse debut on 5 November. While I wasn't expecting fireworks from Petrossian that day he had been doing everything right at home and cruised clear in the closing stages. He has continued to please and returns to Newbury in great shape."
Newbury, 17:45 - Petrossian
Tony Calvin has cast his eyes over the weekend cards, and is tipping up a massive outsider in the Lincoln Handicap over at Doncaster, as well as a two pronged attack in the Mares' Hurdle at Newbury.
He says: ""I appreciate Dean Ivory will want to be cautious with the horse after a lengthy absence but the fact of the matter is one of his best handicap performances came when winning on good to firm at Ascot."
Back Librisa Breeze in 15:10 at Doncaster at 100.099/1
Ryan Moore: Title Ready has outside chance in Dubai World Cup
As the flat season begins, Ryan Moore returns to Betfair with eight rides in Dubai, including a 25/1 chance in the World Cup. Our man provides the lowdown on each horse.

He says: "He needs to improve a fair bit here on what we saw of him in the Breeders' Cup Classic, but nothing much scares you that much in here, does it?"
Meydan, 16:50 - Title Ready
Betfair Ambassador Joseph O'Brien discusses his eight runners this weekend across the cards at Meydan and closer to home at Navan and Naas...
He says: "He should come on a lot from his comeback run at Dundalk and the setup of this race should suit him. Finishing in the frame would be a great result, but if the favourite underperforms, Speak In Colours' best form puts him right in the mix."
Meydan, 13:30 - Speak In Colours
Olly Murphy has five runners across three meetings this weekend, and the Betfair Ambassador is hopeful of some nice runs at big prices from at least a few of them...
He says: "He's got plenty of ability and if he gets into a nice rhythm early on, he could be another who runs well at a nice price."
Ascot, 15:20 - Deauville Dancer
Timeform bring you their comprehensive runner-by-runner guide to the Lincoln Handicap at Doncaster on Saturday and pick out their 1-2-3...
They say: "Haqeeqy notched three wins from only four starts last year, with the third success coming in a hot three-year-old seven-furlong handicap at the Leger meeting here. Up 8lb but surely has more to come for a top yard. Big player."
Back Haqeeqy at 4.77/2 in the 15:10 @ Doncaster
Jockey & Trainer Watch

Aiden Coleman has been in remarkable form of late, winning 10 times out of his 34 runners in the past 14 days. His first of two rides tomorrow is on Olly Murphy's Alpha Carinae in the 15:25 Mares' Hurdle at Newbury.
Olly Murphy has been in good form himself, with ten winners in the past two weeks (22% strike rate). This included a hat-trick and a second for Aiden Coleman at Market Rasen on Wednesday, clearly proving to be a fruitful partnership between jockey and trainer.
Currently at 14/1, Alpha Carinae has something to prove after his third at Doncaster at the beginning of the month, but with both jockey and trainer landing winners together, a market check may be in order closer to the off.
Coleman's second ride of the day is also for Olly Murphy, riding Italian Spirit in the 16:35 at Newbury.
The five-year-old managed to go one better on just his second run under Coleman, beating Alex Hales' Kankin by half a length at Market Rasen.
There are two other last time out winners in the line-up, with Bryony Frost aboard Bombyx and Alex Edwards on Alastair Ralph's Osprey Call, who both have chances. However, Murphy and Coleman will clearly be hoping to add to their impressive win record this week and have every chance in this race as well.