The 28-year-old moved to Stamford Bridge for £21.4 million after it was widely expected he would move to Old Trafford and Antonio Sanz has revealed his view on what he describes as 'whirlwind' proceedings.
The Red Devils have claimed that Louis van Gaal ended the club's interest in the Spaniard, and within 12 hours he was on his way to complete a deal with Jose Mourinho's team.
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As relayed by the Mirror, Sanz told Radio Club Tenerife: “Maybe Manchester United fell asleep. The negotiation with Chelsea was like a lightning bolt.”
”It is common knowledge that United were in the bidding for Pedro, but Chelsea were faster and within 24 hours reached an agreement with the club. It was a whirlwind."
United have since turned their interest to Southampton forward Sadio Mane, but it appears they are set for more transfer disappointment with a Saints official claiming the 23-year-old is not for sale.
Chelsea have added Pedro to their ranks with it expected Juan Cuadrado will leave Stamford Bridge after a terrible spell at the club.
The former Barcelona man's career has been glittered with success at club and international level and will be hoping his success continues in London.
He may be in line for his first taste of Premier League action on Sunday as Chelsea travel to West Bromwich Albion, and will be hoping to have an immediate impact as Jose Mourinho's side search for their first win of the season.
For United, they will be looking to maintain their 100 per cent record this season as they welcome Newcastle United to Old Trafford.