The first leg at Stamford Bridge ended 0-0. Sometimes I can have an impact on the transfer market, sometimes I don't have an impact on this.
After a goalless first leg, Chelsea struck first at the Emirates Stadium as Eden Hazard gave them an early lead.
A goalless draw at Stamford Bridge a fortnight ago ensured both teams went into the second leg with realistic hopes of facing Manchester City in the final at Wembley next month, and Eden Hazard gave Chelsea the flawless start when he slotted past David Ospina in the seventh minute.
With the signing of Pierre Emerick Aubameyang expected to go over the line in the coming days, the good times for Arsenal supporters may just be round the corner.
"It is a pity because we had a good run in this competition, it is a pity for me, the players and fans".
"I felt that in January we paid a heavy price for uncertainty that was existing in our dressing room", he said.
"After defeat you need to bounce back and show the answer from the team in the next game". "I don't know [how long] because it's very hard to tell, how many days they need to come back".
Now we know we have to deal with that and get on by everybody giving a little bit more. I saw a balance during the game and we can win or we can lose in this game against Arsenal, but this time they were also a bit lucky in these two situations. At the moment, we are open to strengthening the team but we are not close to signing anybody, " he said.
He has made 18 Premier League appearances this season but has only started one in the last eight league games.