Tottenham Hotspur could still be completing more transfer business this summer.
The Croatian has been quick to settle into his new surroundings after arriving in June.
Lucas Leiva is among the contenders to be vice-captain despite reports suggesting Liverpool would let him leave, with Jordan Henderson expected to take the armband from Steven Gerrard.
The 19-year-old has been discussing both himself and the Bhoys' new signing.
West Ham have emerged as the favourites to sign Everton's Kevin Mirallas, who has also been heavily linked with Tottenham.
The Leeds striker has joined in with the pre-season preparations.
Newcastle United passed on making an offer for former crowd favourite Yohan Cabaye, a decision that illustrates the club's staunch thought process.
Manchester United are reportedly interested in signing Diafra Sakho from West Ham United this summer.
Nottingham Forest winger Stephen McLaughlin is wanted by League One outfit Southend United.
Former Tottenham, Liverpool, Leeds United and Chelsea men feature, as well as a Manchester United star.