Arsenal manager Arsene Wenger says he is pleased with the players who have joined the club recently.
Wenger bought four new players in August - Per Mertesacker, Yossi Benayoun, Mikel Arteta and Andre Santos.
But Arsenal have struggled this season and are down in 15th in the Barclays Premier League table.
However, Wenger said: "I'm very happy with the signings we made and my challenge now is to prove that I made the right decisions. I have great belief in the players I bought in and I am convinced they will prove me right."