Cape Town - Manchester United will be eyeing back-to-back wins in the Premier League for the first time since September when Watford visit Old Trafford on Wednesday.
Louis van Gaal's side have been inconsistent all season, embarking on a seven-match unbeaten streak in the league earlier in the campaign before going on a six-match winless run over the festive period.
United haven't won successive outings in the league since beating Liverpool, Southampton and Sunderland six months ago, but are currently on a three-match winning streak in all competitions after seeing off Arsenal 3-2 at the weekend.
Champions League football still looks like a long-shot for the fifth-placed Red Devils, who trail neighbours Manchester City by three points having played a game more than the League Cup winners.
The Hornets, meanwhile, have enjoyed a promising return to the top flight as they sit in 10th spot, after winning 10 and losing 10 of their 27 league games this term.
Quique Flores' men have steadied the ship after a shaky run of results over the December-January period, where they lost four matches in a row.
The Hertfordshire outfit are undefeated in their last two league encounters, having beaten Crystal Palace 2-1 before playing out a goalless draw with Bournemouth at the weekend.
In team news, the hosts welcome back Matteo Darmian and Anthony Martial from injury, although Chris Smalling remains doubtful.
Marcos Rojo is also rated 50-50 after taking a knock against the Gunners, while Marouane Fellaini and Antonio Valencia are on the verge of making their respective returns from injury.
Visiting boss Flores could give a rest to Etienne Capoue after admitting the midfielder is suffering from fatigue.
Jose Manuel Jurado and Joel Ekstrand remain on the sidelines with calf and knee problems respectively.