Norwich City have signed goalkeeper Vladan Kovacevic from Sporting on a four-year contract with an option for a further 12 months.
Kovacevic was most recently on loan with Polish club Legia Warsaw, and played against Chelsea in the Europa Conference League.
The Canaries have paid an undisclosed fee for the 27-year-old, who is the third keeper signed this summer after Daniel Grimshaw and Louie Moulden following the exit of first-choice Angus Gunn.
Sporting director Ben Knapper said Kovacevic is of "real pedigree" and added: "With over 250 career appearances under his belt, he comes with great experience and with the mentality to perform at a very high level.