Alexis Mac Allister and Andy Robertson have both praised Bobby Clark after the Liverpool teenager’s display yesterday against Chelsea. The 19-year-old was one of four academy graduates who came off the bench for the Reds at Wembley Stadium as Liverpool’s injury-hit squad forced Jurgen Klopp to turn to youth players. Despite the occasion, Clark impressed after replacing Conor Bradley 72 minutes in, with the midfielder winning praise from Jamie Carragher after his cameo from the bench. And taking to Instagram, Mac Allister and Robertson lauded the Liverpool academy star for his display at Wemble…