Loris Karius has been pictured in a Besiktas shirt for the first time.
The 25-year-old arrived in Istanbul to undergo a medical on Friday and is preparing to complete an initial two-year loan move worth £2.25million.
Besiktas are obligated to buy him for a further £7.25million in 2020 if certain performance criteria are met. These are related to appearances and the Turkish giants qualifying for Europe.
Liverpool will also have a 20 per cent sell-on clause if the deal becomes permanent.
Karius lost his place in the Liverpool team after his two mistakes in the Champions League final, as Real Madrid beat the Reds 3-1 last season.
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The Anfield giants responded by signing Alisson from Roma for £67million this summer, paving the way for Karius to leave the club permanently.
Karius' transfer was held up by national public holidays in Turkey after the clubs thrashed out a deal on Monday, with the keeper being withdrawn from the Reds' squad for their Premier League win over Crystal Palace.
Besiktas announced the news in a rather bizarre way, posting an image of the keeper as their Twitter banner without mentioning it in a tweet.
The Turkish club sold keeper Fabricio Agosto Ramirez to Fulham for £5million earlier in this summer's transfer window.