Jurgen Klopp hailed “world-class” Diogo Jota after his double saw Liverpool past an Arsenal side whose manager Mikel Arteta was left “concerned” by his side’s discipline. Jota made light of the absence of Liverpool big-hitters Sadio Mane and Mo Salah in a man-of-the-match performance at the Emirates Stadium, scoring both goals and giving Takehiro Tomiyasu a torrid time on the right of the Gunners defence from first whistle to last to see the Reds into next month’s Carabao Cup final. Please use Chrome browser for a more accessible video player Diogo Jota scored his and Liverpool’s second goal against Arsenal after it was referred to VAR in the Carabao Cup semi-final second leg. The brace took him to 14 goals in a Liverpool shirt this season from only 22 starts in all competitions, and left head coach Klopp regaling the talents of a player whose £41m price tag drew some scorn when he first joined the club less than two years ago. “We were completely convinced when he arrive...