England international Jack Wilshere raised his middle finger toward Manchester City supporters during Saturday's game at Etihad Stadium, which Arsenal lost 6-3.
Manchester City's top-scorer in the league so far suffered a calf injury during his side's 6-3 win over Arsenal.
The news arrives a day after Spurs were thrashed 5-0 by Liverpool at White Hart Lane, which left the north London club five points below the Champions League places in seventh in the Premier League.
Despite a 5-0 mauling by Liverpool, Spurs' heaviest home defeat in 16 years, Villas-Boas said he was not concerned about his position.
Despite Manchester United claiming a 3-0 victory at Aston Villa, Moyes was unhappy with the number of tackles made on the Belgian-born youngster.
Suarez took his tally to eight goals in three games and helped to set up the other three goals by Jordan Henderson, Jon Flanagan and Raheem Sterling on the day he captained Liverpool for the first time.
Fletcher came on as a 70th-minute substitute in United's 3-0 win at Aston Villa in the Premier League, having not played since December 26 last year due to a chronic bowel condition.
Beaten by Everton and Newcastle United in their previous two league outings, Danny Welbeck scored twice as United secured a much-needed 3-0 victory.
Steve Clarke was sacked late on Saturday, following a run of four consecutive defeats that left the Midlands club two points above the Premier League relegation zone.
The Blues' 2-1 victory over Crystal Palace on Saturday moved Jose Mourinho's second placed side to within two points of leaders Arsenal.
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