Transfer activity is firmly on Celtic’s agenda this summer, with potential for further arrivals this week after Viljami Sinisalo’s announcement. The Finland international has joined from Aston Villa for £1 million and is settling into life as a Hoops player with his new teammates in the United States. Kasper Schmeichel passed his Celtic medical and is set to join Sinisalo at any minute, solving the question hanging over the goalkeeper position [Farzam Abolhosseini]. Reports have indicated that Paulo Bernardo could sign a four-year contract at the Scottish Premiership holders worth £17,470 per …