Dunguib is set for his first appearance in the best part of three years in the Limestone Lad Hurdle at Naas on Saturday.
So impressive in winning the 2009 Champion Bumper at Cheltenham and a dual Grade One scorer over hurdles the following season, Dunguib's career has been blighted by injury since the spring of 2010.
He missed much of the following season before making a winning return in the Red Mills Hurdle and finishing eighth behind Hurricane Fly in the 2011 Champion Hurdle.
He has not seen action since and considering he has recently turned 11, it is not surprising trainer Philip Fenton expects his charge to need the run in this weekend's Grade Three contest.
Fenton said: "He's obviously been off the track a good while and we'll be glad to get him back.
"He'll be well in need of his first run and we'll have to see how he goes before we make any plans for the future."
Dunguib features among 15 possible runners, with Willie Mullins responsible for seven entries.
The champion trainer has entered Blood Cotil, Drive Time, Marito, Mikael D'Haguenet, Mourad, Turban and Upsie.
Mouse Morris also has a strong hand, with Baily Green, Rathlin and Rule The World in the mix.
The Grade Two Woodlands Park 100 Novice Chase is another fascinating contest, with 12 horses in contention.
Mullins has Mozoltov and recent Limerick winner The Paparrazi Kid engaged, with Gordon Elliott's Don Cossack, Morris' Rogue Angel and Sizing Gold from Henry de Bromhead's yard other notable entries.
Meanwhile, Ascot has announced it has entered into a five-year agreement with QIPCO Holding headlined by sponsorship of the King George VI And Queen Elizabeth Stakes.
The £1m King George VI & Queen Elizabeth Stakes sponsored by QIPCO will become the third seven-figure race at Ascot under QIPCO sponsorship, joining the £1.3m Champion Stakes and £1m Queen Elizabeth II Stakes, which are both run on QIPCO British Champions Day. QIPCO's deal sees the end of Betfair's backing of the race.
Sheikh Fahad bin Abdullah Al Thani, director of QIPCO Holding, said: "My brothers and I are delighted to extend our relationship with Ascot through QIPCO's sponsorship of the King George."