As Pep Guardiola wiped away the sting of the Champagne sprayed by his ecstatic players after Sunday’s League Cup final victory over Arsenal, the Manchester City manager faced a crucial question. Nico O’Reilly’s double in the second half had just secured a 2-0 triumph in the Wembley showpiece to give City mental edge over their Premier League title challengers. But will this record-extending fifth League Cup under Guardiola serve as a springboard to catch Arsenal in the title race? Having not masterminded a