Emery has to improve results or he is out door
Unai Emery was surprised at Tottenham's decision to sack Mauricio Pochettino just a week after the Arsenal hierarchy offered a public show of support to their own under-fire boss.
Spurs, who reached the Champions League final last year, sit just three points - albeit nine places - below north London rivals Arsenal in the Premier League table.
Asked about Pochettino's dismissal, Gunners boss Emery replied: "For me it was a surprise.
"I think it's a surprise how that relationship with Pochettino is finishing. But I don't know exactly why and I don't know exactly how he (new boss Jose Mourinho) is going to change their performance."
Heading into the international break, Emery's own position seemed more at threat than his Tottenham counterpart following a 2-0 defeat at Leicester that left Arsenal with two wins from their last 10 Premier League games.
The Gunners are also without a win in all competitions in five games, prompting Emery's bosses to show support for the Spaniard but stressed results must improve.
Ahead of what has become a big game at home to struggling Southampton tomorrow, Emery remains positive.
"I am optimistic and also I know we need to keep better performances with the team, individually and collectively. I know how we can achieve that."
Emery also revealed Granit Xhaka could be in line for a return against Southampton.
The midfielder was stripped of the Arsenal captaincy after telling supporters to "f**k off" as he was jeered while being substituted against Crystal Palace last month.