How much will Celtic miss Asian Games-bound Yang?

Yang Hyun-jun's second goal in three days secured victory for Celtic in Paisley [SNS]For a player who almost left Celtic in January, Yang Hyun-jun has made himself invaluable to the Scottish champions.Seemingly close to leaving for to Birmingham City at the start of the year, the South Korean winger remained at Celtic as Martin O'Neill returned for his second spell in charge, and contributed vital goals as a league and cup double was secured.It was no surprise, then, that the 24-year-old agreed