Hey there! FC Porto fan here. News in Portugal indicate both Everton and Arsenal are trying to sign Brahimi but Everton seems to be the favourites. He hasn't been playing since the first 2 or 3 games of the pre-season so Brahimi is literally just waiting for a transfer that is bound to happen as we have already signed a replacement for him.
If you are curious about him and his performance in Porto I can shed some light. During the first half of his first season here he was in top form and had some absolutely stunning games that made us think we had a real gem here. We were literally thinking he would be the next star that would leave Porto for a huge sum as he had everything to be a world class player: amazing ball control (reminded me of Zidane), technique, flair, speed and dribbling. However, once he came back from CAN his form dropped so dramatically that we wondered if someone replaced him for his twin when he was in africa.
At the end of that first season most supporters thought he had dropped in form because of CAN and basically considered that he wasn't capable of playing an entire season at the same level as his physical conditions didn't allow him to play that many consecutive games. However, during season two he presented us with some abysmal football from the start so we really have no idea what happened to him. During a few games he showed some of his magic and had a few good perfomances but overall he was very disappointing. His weaknesses also became more apparent as he showed lack of concentration during matches, would easily lose balls in the midfield leading to dangerous counter attacks from the opposition and was very individualistic, rarely helping in defense or trying to do all by himself when it was clear it was impossible.
During the 2nd half of last season he started sitting on the bench considerably more and showed some signs of insubordination for not playing regularly. Given Porto's poor financial conditions and the need to sell players it was pretty much obvious he was going to be sold at the start of this season even with a new manager.
In conclusion, I have no idea which Yacine Brahimi you guys are going to get: the one from the first half of the first season that showed he could become a world class player or the mediocre player that disappointed us so much the rest of the time.