Harry Kane signed a new deal until 2022 on Thursday.
Mkhitaryan spent two seasons at Borussia Dortmund under Jurgen Klopp.
Spanish playmaker could miss three months after requiring surgery to fix achilles injury.
Germany international is yet to sign a new deal at the Emirates Stadium.
Bob Bradley has an otherwise clean bill of health for trip to White Hart Lane.
Former forward said team paid him off to stop him from coming forward with allegations about coach Eddie Heath.
Yaya Sanogo has not been part of a competitive fixture since April.
West Ham are just a point above the relegation zone.
Welbeck suffered cartilage damage in his knee during a clash against Manchester City in May.
Arsenal crashed out of the EFL Cup against Southampton.
Lallana missed Liverpool's last three fixtures after picking up an injury while on international duty.
Everton, Stoke City, Ajax and PSV Eindhoven also monitoring the 21-year-old.
The Sweden international has also been linked with Paris Saint-Germain.
Both defenders suffered knocks during the weekend draw at Real Sociedad.
Mauricio Pochettino's side welcome Swansea to White Hart Lane on Saturday.
New Three Lions boss signed four-year contract on Wednesday.
23-year-old striker put an end to recent speculations linking him with Manchester United.
Exclusive: Spanish maestro and Gunners doctors expected to make a final decision in the coming hours.
Mkhitaryan, 27, set up two goals in United's 4-1 win over the Hammers in the EFL Cup.
Arsenal ended their 19 match unbeaten run with loss to Southampton.
Red Devils set up a meeting with Hull City in the EFL Cup semi-finals.
Former player came forward several weeks ago to claim abuse in 1980s ruined his career
Real are six points ahead of Barcelona at the top of the La Liga table.
Gunners crashed out of the EFL Cup following a disappointing defeat to the Saints.
Di Maria exited Real in 2014, one year after Ozil left the Champions League winners.
Rooney is one short of Sir Bobby Charlton's all-time United record of 249 goals.
United beat West Ham 4-1 in EFL Cup quarter-final on 30 November.
Two-legged semi-finals to take place in January.
Colombian responders at crash site say the plane narrowly avoided the town of La Ceja.
The two sides played out a 1-1 draw in the Premier League on Saturday.