Alexis Sanchez scores his third goal at Wembley this season.
The last time Arsenal lost an FA Cup semi-final to a team from outside the top flight was in 1973 against Sunderland.
The last four games between Reading and Arsenal have seen 27 goals scored.
Only George Ramsay (6 with Aston Villa ) has won the FA Cup as a manager more times than Arsene Wenger.
Each of the last three times Arsenal have faced second tier opposition in the semi-final they’ve gone on to win the trophy (1998, 2003 and 2014).