New Delhi [India], September 15 (ANI): Hyping up the India-Australia rivalry ahead of the upcoming Border-Gavaskar Trophy, Aussie opener Travis Head said that the Rohit Sharma-led side is “extremely difficult” to play, but added that he won’t term them as ‘favourites’ and instead looks forward to a successful summer. The Border-Gavaskar series between India and Australia will begin on November 22, with the first Test at Perth. Over the years, India has regained an upper hand over Australia in the series. India has won its previous four series against Australia in a row, including two wins in A…