Chelsea are understood to be tracking Porto star Jackson Martinez with the striker being considered as a fall-back plan should other transfers fail to go through for the Blues.
Jones notes that "the 27-year-old is not top of either club's list but he is an option they will consider if they don't get their priority signings."
Jackson has been in fine form for Porto this season, bagging 21 goals in 36 appearances, per WhoScored.com. His goals would certainly improve Chelsea's frontline, who have been left behind by free-scoring Premier League rivals Liverpool and Manchester City. Chelsea have scored 65 league goals so far this season. City have 84, while Liverpool have a staggering 90, per PremierLeague.com.
Scouting Jackson is therefore a sensible move from Chelsea manager Jose Mourinho. His No. 1 target is understood to be Atletico Madrid's Diego Costa, per Neil Ashton of the Mail. However, Ashton reports that the striker is likely to cost Chelsea upwards of £40 million, a huge fee even for the likes of owner Roman Abramovich.
The deal could be complicated further by discussions over goalkeeper Thibaut Courtois' future. Wrote Ashton:
Negotiations will be complex and delicate because Atletico want to complete the permanent signing of keeper Thibaut Courtois, who is on loan from Stamford Bridge.
Courtois is part of the succession planning at Chelsea for Petr Cech and Mourinho is unlikely to sanction his sale.
Courtois has been crucial in Atletico’s impressive season so far, anchoring Diego Simeone’s solid defensive unit. And as Nick Lustig of the Star notes, Atletico are willing to pull out all the stops in their bid to keep the player.
Chelsea have a chequered history when it comes to transfer dealings with Atletico and have missed out on big name signings before. Just last year, Abramovich attempted to sign the Rojiblanco’s Falcao, only for the Columbian star to move to Monaco, per the Metro.
If the Costa transfer hits the rocks, Jackson would not be a bad replacement for a Chelsea side that are desperately in need of goals. Despite their Champions League heroics against Paris Saint-Germain on Tuesday night, none of Chelsea’s strikers inspires confidence in Mourinho. He will want reinforcements this summer in some shape or form.