According to a report in The Daily Telegraph, online food giant Amazon has twice approached Deliveroo about a takeover before the British restaurant delivery service entered talks with Uber.
The approaches were exploratory and have not progressed, the newspaper report said, citing an investor familiar with the matter. The first round took place two years ago.
The report comes just days after it was reported that Uber is in the early stages of negotiations to buy the UK-based startup for around $2bn.
Amazon and Deliveroo were not available for media comment.