Sevilla caretaker coach Antonio Alvarez says it will take time for the players to get used to his system.

Alvarez was handed the job last week after Sevilla failed to reach an agreement with Spain's Euro 2008-winning coach Luis Aragones to replace the sacked Manolo Jimenez.

After their 3-0 defeat to Villarreal, Alvarez declared: "I've taken charge of three training sessions, this week we will work on tactics, physical aspects...because we need to improve in every way that we can.

"We will have five or six days to work, not like last week, when everything was very rushed and the team didn't have time to take on board the work and the style of play that I want.

"It's not a physical question, but a change of a mindset. We were playing in one way, I want us to play in another, and this requires time."