Internazionale defender Jonathan has given his backing to head coach Walter Mazzarri and insisted everyone at the club will give 100 per cent during the 2014/15 campaign.
The Brazilian admitted the Nerazzurri only played to about 30 per cent of their best last year as they finished fifth in Serie A.
However when speaking to Sky Sport Italia, the full-back gave his backing to the man in the Inter hotseat.
Football Italia quoted Jonathan, he said: “The coach has so much talent to call upon.
“Last year we gave about 30 per cent, but this year I’m sure that we’ll give 100 per cent. We are completely with the Coach and will do whatever he asks of us.”
The 28-year-old then praised the quality of former Manchester United defender Nemanja Vidić and believes Inter will challenge for the Scudetto this season.
He added: “Vidic has the experience of playing at the very highest level and has all the quality to do well at Inter.
“We have such a strong team and I’m sure we’ll fight for the Scudetto right until the end.”