Lukaku, 23, has been urged to set himself ambitious goals by Ronald Koeman.
Ageuro, 28, admitted he was struggling for form and fitness prior to the game at the Nou Camp.
The teenager has fulfilled a variety of roles since making his debut earlier this year.
Janssen moved to Tottenham from AZ Alkmaar earlier in the summer.
Mourinho has claimed that summer signing 'must do more' to win a regular place in his squad at Old Trafford.
Alexis Sanchez suffered a muscular injury while training with Chile.
Hammers head of medical and sports science Stijn Vandenbroucke has provided his latest injury update.
Striker was ruled out for 6-8 weeks after damaging ankle ligaments on 25 October.
Schweinsteiger, 32, has not featured for the Reds this season.
Talented midfielder, also linked with Liverpool, claims that Spurs were immediately turned down by Schalke.
The South Korea international explains reason for downturn in form ahead of critical Uzbekistan clash.
The 24-year-old suffered a second serious knee injury in October.
Gunners travel to Old Trafford just after the international break.
The West Ham United full-back is eager to make his full England debut after late call-up.
Doctor says Chile international could miss the rest of the month with quadriceps tear.
Shaw, 21, pulled out of United's game against Swansea shortly before the match.
The 23-year-old will miss Wales' clash with Serbia on Saturday.
Reports in Spain claims the right-back is a doubt for the Friday game with Austria.
The experienced goalkeeper has hailed Arsenal's new-found strength in depth.
Spanish-Brazilian reportedly joined the national team with groin bruise.
Portuguese coach reported to be unhappy with number of injuries suffered by his squad.
Ozil has scored seven goals in his last 14 appearances for the Gunners.
Liverpool are currently top of the table with 26 points.
Former Liverpool star would extend his stay at the Nou Camp until 2021.
Zlatan Ibrahimovic is Manchester United's top scorer thus far this season.
Brazil have not lost at home to Argentina in the last 10 meetings.
Pogba has struggled for consistency since his big-money summer transfer.
Mourinho recently complained about his stars being unwilling to play with minor injuries.
The Serb is entering the final six months of his contract at the club.
Azmoun's last goal in the Champions League was in Rostov's 2-1 defeat to Atletico Madrid.