Sentence:  Mario Balotelli replaced Tevez but his contribution was so negligible that he suffered the indignity of being <WSD>substituted</WSD> himself as time ran out, a development that encapsulated a wretched 90 minutes for City and boss Roberto Mancini. 
Meaning of the word marked with <WSD> tags:  To remove (a player) from the field of play and bring on another in his place.