A tennis star has admitted he does not know when he will return to the sport and fears he may have to bring forward his retirement because of health problems he says he has suffered since taking the Pfizer Covid vaccine.World number 73 Jeremy Chardy has become the latest tennis star to speak out against vaccines after experiencing what he describes as violent, near-paralyzing pains across his body since taking the jab, warning that there is "no hindsight" once people have received the treatment.The 34-year-old says he his priority is to "take care of myself" after seing two doctors and...