Wigan have reached the last four of the FA Cup for the first time in their history.
The Latics are the 78th different team to reach the semi-final stage of the FA Cup.
Millwall were last in the semi-finals in 2004 when they made it to the final before losing to Manchester United.
The one and only meeting between Millwall and Wigan in the FA Cup was back in 1935. Millwall won a third round tie 4-1.
Wigan are unbeaten in their last three meetings with Millwall in all competitions, without conceding a goal (W2 D1).
The Lions have won just one of their last 13 clashes with top flight opposition in the FA Cup (D4 L8). However, that victory came in this year's competition when they eliminated Aston Villa.
Wigan have failed to score just once in their last 11 FA Cup matches against opponents from lower divisions.
Of those 11 matches, Wigan have lost just two, winning five and drawing four.
Millwall have won four and lost just one of their last six FA Cup matches played at a neutral venue.
This will be Wigan's first game at Wembley since 2000 when they lost 3-2 to Gillingham in the then Football League Second Division Play-Off.
Millwall have conceded just one goal in their five FA Cup matches so far this season.
Jordi Gomez has scored three goals and assisted two more in the FA Cup this season. The Spaniard played a part in two of their three goals against Everton in the quarter-final.
Chelsea v Manchester City
Chelsea (2012) and Manchester City (2011) are the last two teams to win the FA Cup.
The London side have lifted the trophy four times in the last six years.
Excluding penalty shoot-outs, Chelsea are unbeaten in their last 29 FA Cup matches; winning 23 and drawing six.
This will be the first meeting between these two teams in the FA Cup since the Fourth Round of the 1971 FA Cup; when Manchester City advanced.
City have won two of their three meetings in the FA Cup; with Chelsea winning the other. All three games have been won to nil.
Chelsea have won just two of their last eight meetings with Manchester City in all competitions, losing five and drawing the other (excluding Community Shield).
Manchester City are yet to concede a goal in the 2013 FA Cup.
No team has reached the FA Cup final without conceding since Everton in 1966.
Chelsea have won all seven FA Cup games that they have played at the new Wembley.
Both of Manchester City's games at Wembley in the 2011 FA Cup ended in 1-0 victories.
Carlos Tevez has scored five goals in four FA Cup matches this season, including a hat-trick against Barnsley.
Juan Mata has laid on five goals for his team-mates in five FA Cup appearances this season.
