Arsenal manager Arsene Wenger admits the next few weeks could make or break the Gunners' season.
They face a Premier League tie with Sunderland on Saturday before meeting the Black Cats in the FA Cup a week later.
The North London outfit also visit AC Milan in the UEFA Champions League in between their meetings with Martin O'Neill's side.
Following their cup clash with Sunderland, they then have three significant games in the race for a Champions League place, as they take on Liverpool, Tottenham and Newcastle.
After successive defeats to Swansea and Manchester United, Arsenal's season appears to be back on track after beating Aston Villa and thrashing Blackburn in recent weeks.
Wenger has faced criticism from his own supporters this season and, despite sitting in sixth place, the Arsenal manager is optimistic over his side's chances.
He also revealed that England defender Kieran Gibbs has returned to the squad after being out through injury since October.
Wenger said: "Overall the situation looks a lot more positive in a period that will decide our season and therefore it is good to have the players back.
"It is that important because in one week we play three games in three different competitions.
"In every single competition we are, of course, in a position where we want to win our games.
"Sunderland are doing well, and we have rebuilt our confidence. It is important that we go in a positive mind there and that we come back with three points."