Celtic manager Gordon Strachan completed his third signing of the January transfer window by recruiting defender Jean-Joel Perrier-Doumbe from Rennes.
The 28-year-old, who was being kept out the French club's first team by former Chelsea and Birmingham player Mario Melchiot, joined the Hoops until the end of the season with the Parkhead club then having the option to sign him for a further two years.
Goalkeeper Mark Brown was signed from Inverness Caledonian Thistle last Thursday to become back-up to Artur Boruc, after David Marshall moved on loan to Norwich.
Defensive problems encouraged Strachan to move for Perrier-Doumbe, a versatile Cameroonian international whose transfer was delayed by paperwork issues in France.
Gary Caldwell, Bobo Balde and Mark Wilson are all out with long-term injuries and Stephen McManus continues to struggle with an ongoing groin complaint.
With that in mind, Strachan recruited Steven Pressley who was registered as a Celtic player on January 1 despite arriving from Hearts in December.
And the Celtic boss believes his most recent signing will stands his side in good stead for the rest of the season.
Strachan told the club's official website: 'It's great to be able to add a player like Jean-Joel to the squad. His enthusiasm and ability has certainly impressed everyone at the club.'
Perrier-Doumbe, who could make his debut in the Bank of Scotland Premier League clash at Inverness on Sunday, reciprocated his new manager's enthusiasm:.
'I am delighted to be joining Celtic,' he said. 'I know that they are a massive club with a great history and a fantastic support.
'It means a lot to me to be joining a club which is not only is doing well in the league but is still involved in the Champions League and I look forward to training hard and fighting for a place in the team.'