5) Sergio Aguero
If things go his way, Sergio Aguero could end up being Manchester City's all-time highest goalscorer in 2017/18 (he's only eight goals shy of the record). But the harsh reality is that he may not have a future at the Etihad under Pep Guardiola.
Much has been written about why the Catalan manager prefers Gabriel Jesus up front - a more mobile and versatile forward who is not a traditional no.9 in the mould of Aguero. If not for his injury, Aguero would not have returned to the starting lineup.
So where could Aguero go? A straight swap for Alexis Sanchez was mooted while a move to Chelsea was also on the cards.
Also read: Pros and cons of an Arsenal-Manchester City swap deal for Alexis Sanchez and Sergio Aguero
However, Aguero could thrive at a club such as Paris Saint-Germain. The club reportedly renewed their interest in Alexis Sanchez but Arsene Wenger is adamant that the Chilean will not be sold.
That leaves Aguero as the other option they could pursue. While Edinson Cavani is a capable striker, his propensity to miss a number of chances has hurt the Ligue 1 club in the league and in Europe.
Aguero, on the other hand, has proved to be capable striker in the Premier League and in the Champions League. PSG are also one of few clubs who can afford to pay similar wages, if not more.
With Angel Di Maria and Julian Draxler on either side, he will never be starved of chances and not many get into scoring positions and convert chances as well as he does.