Watford will again be without defender Craig Cathcart for Sunday's trip to Middlesbrough, but Isaac Success should play some part.

Boro too soon for Cathcart

Boro too soon for Cathcart

Northern Ireland international, Cathcart, missed his country's World Cup qualifiers against San Marino and Germany because of a groin injury which ruled him out of the visit of Bournemouth a fortnight ago.

And the 27-year-old remains sidelined for the Premier League return at the Riverside Stadium with boss Walter Mazzarri revealing he has been hampered by a leg problem since before the start of the season.

He said: "Even when we started pre-season, Cathcart had some issues and had problems which go from his leg right up to the abdominals, but we are following his progress."

Meanwhile, Success, is unlikely to start but Mazzarri feels he should be able to feature at some point at Boro having pulled out of the Nigeria squad because of a dead leg he picked up against Bournemouth.

Miguel Britos and Valon Behrami should also be available to start despite carrying knocks of late, while the rest of the side's internationals have returned with a clean bill of health.

Mazzarri has urged his players to quickly focus on the game at Middlesbrough after getting them all back together with just three days to prepare for it.

He said in the Observer: "Today I spoke with the team, which was the first time I had them together since the national break.

"I told them they need to be concentrating and focused on the next game immediately.

"It’s not easy when you only have two or three days after the international break and I think I have a very responsible team and so I’m happy with that.”