Investment: Keylor Navas
Keylor Navas had 9 saves against Barcelona to help PSG advance to the CL quarterfinals. I think he could get a MOTM card for this (EA released MOTM cards on Saturday, February 27th after Leg 1, so I expect more in the coming days for Leg 2). He is one of the cheapest 87 rated players, too.
Keylor Navas: PS4 41k XBOX 39k PC 47k
Cross your fingers he goes OOP for MOTM and that we get some sort of SBC that causes high rated cards like him to rise. If he does go out of packs, sell before he returns to packs. A profit of ~ 5k would be good for him.