Arsenal’s Arsene Wenger gives Mathieu Flamini injury update

Mathieu Flamini has been ruled out of Arsenal’s Champions League game against Borussia Dortmund on Tuesday due to a concussion.

The French midfielder was substituted in the first half of the Gunners’ 4-1 win over Norwich City on Saturday after suffering a knock.

And Arsene Wenger confirmed that the north Londoners will not risk playing the 29-year-old in Tuesday’s game at Emirates Stadium.

“We will not play him tomorrow because it’s a five-day rule that we will respect and we won’t take any chances,” said Wenger. “It was a concussion and the doctor advised us not to play him. He’ll be OK for the weekend.”

Wenger also hinted at a number of changes to his starting line-up for the visit of the Bundesliga side.

“There will be some changes certainly but I’ll leave myself 24 hours until tomorrow afternoon to decide that,” he continued.

“It’s an important game, of course. It’s not a decider but an important one.

“It’s an 80 per cent game for me. If we win the game, we know that if we win the other home game we are there [in the last 16].”

Arsenal v Borussia Dortmund: Pre-match facts

• The teams last met in 2011-12 when two Robin van Persie goals gave Arsenal the points at home despite Shinji Kagawa’s added-time response.

• The teams also crossed swords in the 2002-03 first group stage, Arsenal winning 2-0 in London and Dortmund turning the tables with a 2-1 win in Germany.

• Tomas Rosický played for Dortmund between 2000 and 2006, scoring 19 goals in 149 Bundesliga games.

• Arsenal’s home record against German clubs is W9 D1 L3; overall it is W13 D5 L8.