The Dutchman has admitted the Red Devils have struggled to inspire their fans.
Keane played his second game for the United U21 after being recalled from his loan spell at Preston.
Carlos Bacca joined AC Milan from Sevilla in the summer and is available in January for £30m.
Everton will find it difficult to hold on to Romelu Lukaku beyond the next summer transfer window.
Matteo Darmian will not push for a move in January as he is happy at the club.
Liverpool striker Divock Origi suffered a hamstring injury against Leicester City on Boxing Day
The 21-year-old has signed a two-year contract at Deepdale following two successful loan stints at Barnsley.
Saivet to become Newcastle's first January arrival.
But Diego Simeone is not likely to let him go.
The 20-year-old star is keen to get more playing time at Old Trafford.
Former England captain says club must build from the back in attempt to resume dominance.
Van Gaal's side struggled to break down their opponents again on Saturday.
Van Gaal previously said the Belgian would feature for the U21s to get his fitness up.
Newcastle United face Manchester United in the Premier League clash on Tuesday. Find out how to follow the match live in the UK.
The draw for the fourth-round of the FA Cup takes place on Monday evening.
Manchester United are reportedly ready to pay £90m to secure the services of Real Madrid star.
Chelsea's interim boss believes the in-demand Spaniard will succeed in English football.
Gareth Bale is disappointed with Real Madrid's decision to sack Rafael Benitez.
Lazio has already rejected a €50m offer for Anderson from Manchester United last summer.
Paul Scholes is disillusioned by what he called 'boring, negative' football on offer at Old Trafford.
Adnan Januzaj failed to make a single start in the Bundesliga while on loan with Borussia Dortmund.
Manchester United are keep on securing a move for either Mauricio Pochettino or Laurent Blanc.