PARIS, Jan 10 (Reuters) - Leaders Paris St Germain must hit the ground running when Ligue 1 action resumes on Friday, defender Christophe Jallet said in a warning to the title favourites not to let the chance of silverware slip away again. PSG had a three-point lead over second-placed Montpellier at the winter break last season before losing out to the unfancied challengers, who claimed their first French title in May. Qatari-backed PSG, who host lowly Ajaccio on Friday, head the standings again, albeit on goal difference from Olympique Lyon and Olympique Marseille. ... More...