Sunderland boss David Moyes has been on a scouting mission as he looks to add to the squad ahead of transfer deadline day.
Moyes was an interested spectator at Griffin Park for Brentford's 1-0 win over Nottingham Forest in the Sky Bet Championship.
The Black Cats need to add to a threadbare squad before the transfer window closes on Wednesday, August 31, with new players needed in defence, midfield and attack - with a new striker a priority.
Unconfirmed reports suggest Moyes was keeping tabs on 23-year-old Forest striker Britt Assombalonga and winger Oliver Burke.
Both came on as second half subs , with the birth of Assombalonga’s child hours before the game meaning he missed out on a starting spot.
Assombalonga enjoyed a prolific spell at Peterborough United, scoring 23 league goals in 41 starts before his big-money move to Forest in the summer of 2014.
Meanwhile, 19-year-old Scottish winger Burke has only made eight league starts for the Championship side and would be very much one for the future.
Watford, meanwhile, remain keen on Sunderland defender Younes Kaboul with reports they have made an enquiry about his availability.
But Sunderland are understood to be keen to keep hold of the Frenchman, who started the season alongside Lamine Kone.
The 30-year-old, who has become a key figure in the Sunderland defence, joined the club from Tottenham Hotspur last summer for a fee of £3million.
As reported by the Echo, the interest in Kaboul is genuine, with the Hornets keen to sign another centre-back.
Watford head coach Walter Mazzarri wants to bring in another centre-back before the end of the transfer window.
Sunderland have previously been linked with a move for Blackburn Rovers centre-back Shane Duffy, who has this week rejected an initial new contract offer by Rovers.
Duffy and teammate Ben Marshall rejected the new offers.
Negotiations are ongoing, with Rovers boss Owen Coyle telling the Lancashire Telegraph "We made an offer to them both last week, which was an improved offer on their existing contracts, and with their representatives, they felt that wasn’t enough to get that done, which is fine.
"I’ve got back to the owners to see if we can move that on again. Within that there will be speculation and everything that goes with it."
West Bromwich Albion, Brighton & Hove Albion and Celtic have also been linked with Duffy.