Scottish Premiership giants Celtic are still trying to complete a few signings before the start of their season and they still have some work to do in trying to convince players to sign for them this summer. After losing the Scottish Premiership title to Rangers last season, they will be looking forward to winning back the league crown and they have been somewhat working to get back on the throne by trying to sign players that can truly make them challenge Rangers for the title next season as well as for other trophies beyond their domestic league.