Arsenal completed a lot of successful business last summer, with the likes of Declan Rice and David Raya joining, but this also extends beyond transfers. Mikel Arteta and Edu Gaspar tied down several key players to long-term contracts, with Ben White and Takehiro Tomiyasu now expected to follow suit. Bukayo Saka and Martin Odegaard were among the players they gave new contracts to, and both players are thriving this season. However, there was one extension which came as a relief after some uncertainty, as William Saliba committed his future to the club. The centre-back is already one of the be…