Christian Benteke has started in only one Premier League game in 2016 for Liverpool.
Benteke has struggled to break into the Liverpool XI under Klopp, playing just 138 minutes of PL football since mid-January.
United are currently in sixth place level on points with fifth-placed West Ham and one point behind Manchester City in fourth.
The 23-year-old player has agreed a four-year deal with the east London club.
Slaven Bilic's side travel to Stamford Bridge to face their London rivals.
The 69-year-old manager has confirmed he is to take charge of two qualifying games in March.
The New Zealand captain was withdrawn during the FA Cup draw with Manchester United with cramp.
United face an uphill task to overturn a 2-0 deficit when they face Liverpool in the second leg of the Europa League last-16.
West Ham travel to Old Trafford to end Man Utd's hunt for their first FA Cup in 12 years.
Darmian is looking forward to facing his former teammate Ogbonna when United take on West Ham in the FA Cup.
RoShaun Williams has got his first call to the senior squad due to a knock suffered by Timothy Fosu-Mensah.
Manchester United face West Ham United in the FA Cup quarter-final clash on Sunday. Find out how to follow the match live in the UK.
Slaven Bilić thinks the current United team lacks the star quality that characterised previous sides.
United face a crunch clash against West Ham in the FA Cup as they look to bounce back from their loss against Liverpool.
Slaven Bilic will be without defensive trio Winston Reid, James Tomkins and James Collins.
Enner Valencia, Victor Moses and Joey O'Brien are all fit, with James Tomkins also making good progress.
Alex Oxlade-Chamberlain will enter the final two-years of his contract at the end of the current campaign.
The 17-year-old midfielder has revealed the move is the fulfilment of a long-term ambition.
Tottenham must shake off their loss ahead of Saturday's pivotal north London derby.
West Ham host Spurs in a huge London derby where the away side could move top of the league.
Andy Carroll could also be given a start having made a handful of appearances off the bench.
Leicester moved five points clear with Arsenal not in action until tomorrow.