LONDON, Dec. 20 (Xinhua) -- Pep Guardiola's problems at Manchester City increased on Friday when it was confirmed that central defender Ruben Dias will be out of action for several weeks with a muscle injury.
Guardiola confirmed Dias will miss the entire Christmas and New Year program of matches and is a doubt for City's vital Champions League clash against Paris Saint-Germain on January 22.
"It's a muscu
