Jorge Sampaoli and Ernesto Valverde are the two candidates for the Camp Nou hot seat.
Perez has not managed to break into Arsenal's first-team.
The La Liga giants needed a Lionel Messi 90th-minute penalty to secure the three points.
Silva is comfortable playing on the wings or behind the striker.
Jose Mourinho's side lost 4-0 at Stamford Bridge earlier in October.
Wenger, 67, is under pressure after a run of poor results at Arsenal.
Mourinho says Pogba's transfer fee will look cheap in a couple of years.
Welbeck played 70 minutes in Arsenal U23 defeat to Leicester City on 19 February.
Harry Kane scored a hat-trick as Spurs reached the FA Cup quarter-finals.
Both players came off the bench to secure United's place in the FA Cup quarter-finals.
Kane, 23, scored a hat-trick to help Spurs beat Fulham in the FA Cup fifth round.
Harry Kane scored a hat-trick as Spurs secured a place in FA Cup quarter-finals.
Manchester United travel to Stamford Bridge while Tottenham host Millwall.
Rashford and Ibrahimovic goals wipe out Danny Graham opener.
Spurs join Chelsea, Middlesbrough, Millwall and Lincoln City in QF draw.
Sutton United could become the second non-league side to make it to the quarter-finals after Lincoln City booked their place on Saturday.
Wenger also thinks he will be managing for another four years.
Fulham defeated Tottenham 4-0 the last time the two met in the FA Cup.
Shaw has made just six Premier League starts thus far this season.
The Argentina international has missed the club's last two games.
Paul Lambert's side are out for another upset.
Sean Raggett's 89th minute winner sealed a famous win at Turf Moor.
The under-fire coach insists criticism is not affecting him.
Blackburn Rovers host Manchester United in the FA Cup fifth round tie on Sunday.
Lincoln City and Sutton United are the first two non-league clubs to make the fifth round of the FA Cup.
Molby says it will be a disappointment if Liverpool fail to finish in top four this season.
Wolves have beaten Stoke and Liverpool in the last two rounds of the FA Cup.
Former Manchester United striker was stopped during his transit at Miami airport due to an Iranian stamp on his passport.
Huddersfield are unbeaten in seven games at home.
Keane left United and joined Burnley on a permanent transfer in January 2015.