Root missed England’s four-wicket loss in last week’s first Test following the arrival of his second child.
But the star batsman has slotted back into the side for the second Test at Old Trafford starting Thursday.
The 34-year-old Denly was always likely to make way after two low scores in last week’s loss at Southampton left him with a modest average of 29.53 from 15 Tests.
Denly’s place was put under further threat by an innings of 76 from Kent team-mate Zak Crawley at the Ageas Bowl.
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