Keane, who is a Red Devils academy product, is a target for Jose Mourinho as he looks to improve his defensive options.
And the 24-year-old has been hanging out with United’s latest academy sensation.
Harrop capped a dream debut with a goal in United’s 2-0 win over Crystal Palace on the final day.
Mourinho will no doubt hope the winger will be having a word or two in the Burnley star’s ear about coming back to Old Trafford.
Harrop shared a snap of himself and the England centre-back on his Instagram account.
The duo spent time at an animal farm in Dubai and posed next to a lion cub.
Keane is three years older than Harrop but they are likely to know each other from their time in the reserves and academy.
Earlier this week Keane was spotted in Dubai playing football on the beach with another Red Devils star, Jesse Lingard.
The Manchester Evening News say Mourinho might have to fork out up to £24m for the two-capped Three Lions man.
Mourinho knows exactly who he wants and he’s given chief executive Ed Woodward his list of targets.
At the weekend he said: “Ask Ed Woodward. He knows since March who I want, what I want and how much I want.
“Now is time for him to work.
“It's for him to work because he has holidays in August and in August I'm working.”
