By Tom Gott Liverpool may have to part with £12.8m if they want to hire Sporting CP manager Ruben Amorim this summer, a report has claimed. Amorim has emerged as a leading contender for the Liverpool job after Bayer Leverkusen boss Xabi Alonso publicly ruled himself out of the race to replace Jurgen Klopp on Friday. The 39-year-old is under contract with Sporting until 2026 and his deal is known to include a release clause, although there have been significant differences when it comes to the amount of this exit clause. Previous reports claimed it would cost €30m (£25.6m) to hire Amorim from S…