Manchester City v Sporting Lisbon
Sporting Lisbon have lost seven of their previous 11 away European games against English sides (excluding qualifiers), winning two and drawing two.The Lions have never kept a clean sheet in an away game against an English side.
The Citizens have won both previous home games in Europe against Portuguese sides (excluding qualifiers), shutting their opponents out on each occasion.
Sporting Lisbon have won more fouls than any other team in the Europa League this season (166).
The Portuguese giants have only won one of their 11 away games in all competitions, having won six in a row before this spell.
Manchester City have won 35 of their last 39 home games in all competitions, drawing two and losing two.
Excluding qualifiers, City are unbeaten in 24 home European games and have only lost one of 33 in total (0-1 v Chelsea in April 1971).
15 of Sergio Aguero's 21 goals for Manchester City (all competitions) have come at the Etihad Stadium.
Athletic Bilbao v Manchester United
Wayne Rooney has scored 14 goals in his last 13 appearances in all competitions.In their one previous European tie against Athletic, Man Utd lost the first leg (3-5) before prevailing 3-0 in the second leg to progress (European Cup - 1957).
Wayne Rooney has netted a brace in four of his last six appearances in all competitions, scoring nine goals in total in that run.
Since the start of the Champions League (1992/93), Manchester United have only progressed through one of seven European knockout ties having lost the first leg (v Roma in the Champions League quarter finals in 2007).
On that occasion (versus Roma) however, Manchester United won the second leg 7-1.
United, who have lost their last two European games, have only ever lost three in a row once in their history (excluding qualifiers), between December 2004 and May 2005.
Sir Alex Ferguson's side have kept four successive clean sheets away against Spanish opposition, but have only netted once themselves in that run.
Bilbao have only lost one of their eight previous home meetings against English opposition, winning four and drawing three.
Fernando Llorente has attempted more headed shots (12) than any other player in the Europa League this term.
