• Club's finish to season hangs on captain's cracked ribs• Ashley Cole and Frank Lampard also have injuriesRoberto Di Matteo has admitted that he faces an anxious wait over John Terry's fitness but Chelsea's interim manager hinted that he may be forced to risk the defender at a critical time of the season.Terry, who has suffered cracked ribs, will not be involved against Wigan Athletic on Saturday and there is unease about the extent of the contribution he can make over the remainder of the campaign before the semi-finals of the Champions League and FA Cup."Every time he gets a knock he will go a step back," said Di Matteo who, despite unders...