Returning interim manager Martin O'Neill is in no doubt that Celtic must strengthen this month - but how will that work?

Returning Celtic manager Martin O'Neill says he does not know if he will "have the energy" to stay on past the end of the season.Former Aston Villa and Ireland boss O'Neill will again be at the helm until the end of the season but he is unsure about a longer-term stay.

Martin O'Neill admits he does not know if he would "have the energy" to stay on as Celtic boss past the end of the season.

Returning manager Martin O'Neill says Celtic will go "all out" to sign players in January. O'Neill has been appointed at Celtic Park for the second time this season and is embarking on his third spell at the club overall.

You have to roll back the clock to 1985 for when a Sir Alex Ferguson led Aberdeen were the last team not named Celtic or Rangers to win the league in Scotland, but thanks to set piece dominance, Hearts are leading the league at the moment,

Nancy left the Crew after the MLS Playoffs and was hired on by Celtic FC on Dec. 3, lasting just 33 days in his new position. He became the first Celtic manager to lose their his four matches; his start was the first four-game losing streak for the club since 1978. He ended his tenure with six losses through eight games.

Jahmai Simpson-Pusey will spend the rest of the season with Cologne after the Manchester City defender's disappointing loan spell with Celtic was cut short. The 20-year-old's only Celtic appearance came in the 4-0 win over Kilmarnock in November during Martin O'Neill's first stint as interim manager.

Celtic Woman's new show, "A New Era," is coming to the Old National Centre in Indianapolis. Celebrate their musical heritage with a contemporary twist.