All in Domestic
Benfica could be about to break their club record for most expensive signing in history, which is currently held by Raul Jimenez.
Vitoria Guimaraes are set to strengthen their side by loaning in Croatian midfielder Filip Krovinovic.
Krovinovic struggled for game time last season, appearing in just 4 Primeira Liga games for Benfica spanning over just 36 minutes of football.
It came after he suffered from a cruciate ligament rupture late on in the 2017-18, which took him out not only for the last few months of that campaign, but also the first 10 gameweeks of this most recent season.
Porto are edging closer to completing the signing of French centreback Eliaquim Mangala.
The 28-year old, who played for Porto for 3 years between 2011 and 2014, didn't play a single senior game last season at Manchester City, having fallen down the pecking order.
Porto originally sold the French international to City for a fee in the region of 30 million euros in the summer of 2014, and he went on to play 79 matches for the English champions.
However, with heavy investment under Pep Guardiola, Mangala is surplus to requirements, and Porto, in need of increased depth at centreback with the sale of Eder Militão and Felipe, are to take advantage of his availability.
An agreement for Mangala, who has played for France 8 times, is understood to have already been reached between the clubs, and all that awaits is the medical.
Should no issues be identified, the signing could be completed in a matter of days.