Adrian Clarke looks at key tactical points in Matchweek 17.
Direct, skilful and working together well, they will be a handful.
Man Utd certainly cannot afford to ignore winger El Ghazi, who has scored five goals in his last five appearances.
The 25-year-old is enjoying his best goalscoring run since he hit six goals in four outings for Ajax in 2015/16.
El Ghazi had to wait until 17 December to make his first Premier League start of the season, largely because of Grealish's early-season form on the left wing.
But Ross Barkley’s injury problems have prompted a tactical switch from 4-3-3 to 4-2-3-1.
And since El Ghazi came into the side on the left flank against Burnley, he has been integral to Villa's play in the final third.
Across the last four matches he has attempted 23 shots, 14 of which have hit the target, so he could easily have been even more prolific.
El Ghazi's last four matches
|Shots on target||6||3||4||1|
El Ghazi's goal v Chelsea
Playing in a free No 10 role, but often drifting left, Grealish has been a constant threat.
From his new position, he has made an impressive 22 key passes in the last four matches.
Man Utd are playing well as an attacking force but have conceded two goals in three of their last four matches.
Villa's in-form attackers can now cause them further problems.