Barnsley have completed the loan signing of Celtic winger Saidy Janko.
The Switzerland Under 21 international right winger, who can also play at right back, will remain at Oakwell until the end of the 2016/17 season.
The 20-year-old has featured for Celtic in the Champions League and Europa League.
Republic of Ireland international midfielder Eunan O’Kane has signed a two-year deal with the club.
Marc McNulty has put pen to paper on a season-long loan deal at the Valley Parade.
Hull City have broken their club record transfer fee to sign England midfielder Ryan Mason from Tottenham Hotspur.