Terry has been backed as Chelseaâ€™s captain and leader for next season by manager Di Matteo on the eve of the defenderâ€™s trial for alleged racism.
England international Terry faces an accusation of making racist Âcomments to QPR defender Anton Ferdinand at Westminster ÂMagistratesâ€™ Court on Monday.
Terry denies the charge and Âmanaged to put in a series of Âimpressive performances for ÂEngland at Euro 2012.
His participation in the European Championship means Terry is not due to meet up with the Chelsea squad for pre-season training until the second week of their tour to America.
â€śJT has been tremendous over the years for his club and his country, and he was outstanding at the Euros,â€ť said Di Matteo.
â€śHopefully, he will be the same for us next season. He is our skipper, our captain and our leader, and I Âexpect him to be the same next season.
â€śIn terms of how many years JT can keep playing, it varies from player to player and it Âdepends on injuries.
â€śBut providing you are mentally and physically driven by playing football you can go on.
â€śFrom my point of view, JT is one of the best central defenders in the country.â€ť