#3 Hector Herrera
One of the most talented midfielders who is available for free this summer is Hector Herrera. The Porto captain is set to leave Portugal and move to new pastures in this transfer window.
The midfielder moved to Porto in 2013 and since then he has made 245 appearances for the Portuguese side. During his time at Estádio do Dragão, the 29-year-old contributed to 70 goals and was one of their crucial players.
The Mexican player is a highly versatile midfielder and with his technical abilities, impressive ball-distribution, incisive passing along with excellent tackling and high work rate, the midfielder is able to dominate the center of the park. Additionally, he is a born leader and can prove to be an asset to any team in the world.
The end at Porto opens many new doors for the 29-year-old. The Porto captain is currently linked with a move to Spain but only time will tell where the star midfielder starts his next chapter.