The Serbian has posted images on his official Facebook page which show him holding up a Liverpool shirt, signing autographs for fans and giving his first interview.
Goal reported on Saturday that Markovic had flown in from Lisbon to undergo a medical and finalize the details of a million move from Benfica to Anfield.
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The Serbian has now revealed the deal is complete by posting pictures of himself holding up a Liverpool shirt, signing autographs for fans and giving his first interview to the club's TV channel.
Markovic becomes Liverpool's fourth signing of the summer, following the arrivals of former Southampton duo Rickie Lambert and Adam Lallana and Bayer Leverkusen midfielder Emre Can.