3) Jackson Martinez (Porto)
One of the most prolific and consistent strikers in Europe for the last few years, Jackson Martinez has been a big hit at Porto and could now be on the move to a bigger club, with Chelsea showing an interest in him in the past.
4) Christian Benteke (Aston Villa)
Another powerful centre-forward who’d fit in well at Stamford Bridge, Aston Villa star Christian Benteke has been linked with the Blues and other big sides this summer and could be a good option with a release clause of just £32.5m.
