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Peterborough will definitely be without Gaby Zakuani for their final home game against Watford.

Zakuani has played much of the Championship campaign through the pain of a broken toe and was a surprise inclusion in the starting line up against Southampton on Tuesday night after suffering a dislocated shoulder just three days earlier.

Posh secured their Championship survival despite losing 3-1 to Saints, so Zakuani insists his involvement this season is at an end.

"I always said I would play until we were mathematically safe so it's mission accomplished as far as I'm concerned," said the 25-year-old following the defeat in midweek. "It was a really late call to play but I just wanted to get out there and help the lads.

"I feel sure I'll need surgery on my toe but I'm not too certain about the shoulder. I'll find out for definite this week though and hopefully I can get both things sorted at once if necessary. I'll just be a fan now for the last two games."

Left-back Tommy Rowe is a doubt for Saturday after suffering a broken nose against Southampton.

Adrian Mariappa, meanwhile, returns from suspension to provide Watford with an almost fully-fit squad.

Mariappa missed Tuesday's 2-2 draw at Brighton due to a one-match ban following his dismissal in last weekend's clash against Hull.

Fellow centre-back Martin Taylor overcame a facial injury to start at the Amex Stadium, meaning manager Sean Dyche now has a welcome selection dilemma in defence as to who partners Nyron Nosworthy.

Long-term injury victim Stephen McGinn (knee) is the only absentee at London Road, with the midfielder likely to need more reserve-team action before being considered for selection. Although it remains to be seen whether he could make the bench between now and the end of the season.

The Hornets have drawn each of their last three matches and are winless in four, yet they have tasted defeat just once in their previous 11 and are unbeaten away from home since mid-February.