Jardel: Benfica center back, 30 years old. Brazilian-born, but has played in Portugal for long enough he can qualify as a European player soon.
Why it makes sense: he's a living, breathing, walking center back. Why wouldn't it make sense? Seriously, he's played at the top level with Benfica. He's a big guy (almost 6' 4").
Why it doesn't: Price and complexity. According to this article, Benfica only own 50% of his rights so even if they sold for €10-12m, a Brazilian company would get half. Still, Benfica hardly paid anything for him, so maybe that would be okay.
Conclusion: Interesting idea, but given we haven't done many deals with Portuguese sides, not very likely.
Nicola Sassone: Sassuolo winger/striker, 24 years old. Under contract only until 2017, so his current employers might be willing to move him now.
Why it makes sense: A lot of reasons: he'd get European football with us for sure, his wage demands probably would not be that bad. And he's probably not going to progress much farther with Sassuolo; he could use a new challenge. Also, he's out of contract in 2017, so it's time for Sassuolo to cash in.
Why it doesn't: Just that we haven't signed much of anyone and his favored position is on the left wing, where we have Cheryshev.
Conclusion: Sassuolo played in the Trofea Ceramica a couple of years back so the front offices do know each other a bit, at least. Italian sources say a deal could be concluded quickly in the €10-12m range. I can see this one happening unless the player doesn't want to leave Serie A or something.