Wenger must buy at least 1 of these 5 strikers - all Giroud upgrades

Mario Mandzukic Bayern

Arsenal must be active in the summer transfer window as their current primary striking weapon has been misfiring.

1): Diego Costa - Atletico Madrid

Described by Arsenal boss Arsene Wenger as an 'animal', 25-year-old striker Diego Costa is beastly in front of goal having returned 25 from 30 La Liga appearances, with four assists to boot. Costa has an attacking efficiency of a goal scored or assist provided once every 89 minutes he is on the field in Spanish football. Wenger missed out on another win-at-all-costs animal in Luis Suarez, but he may be mad to pass up this £32m-rated forward.

2): Loic Remy - Queens Park Rangers

A cheaper option than Costa, Remy - valued at £10.5m by transfermarkt.co.uk - will be a likely addition to the summer transfer window. Whilst a competent attacker, he has netted 13 times from 1,867 Premier League minutes, he should not be the premier option for a side with aspirations for silverware. As such, he may be more likely to be an upgrade on fringe forward Lukas Podolski if the German departs the Emirates Stadium, rather than as a replacement for Olivier Giroud.

3): Alvaro Morata - Real Madrid

Some of Sir Alex Ferguson's greatest successes at Manchester United arrived because of the nature of his impact substitutes such as Ole Gunnar Solksjaer. At Real Madrid, Morata is fast developing a similar reputation. Like Remy, he is valued at £10.5m, however, his minutes per goals ratio is far superior. In fact, it is the best in his division - better even than Lionel Messi and Cristiano Ronaldo!

At 21-years-old, Morata has played only 265 minutes of Primera Division football even though he has made 17 appearances (never has he played a full match - he averages a 15 minute appearance - yet his minutes per goal ratio is one every 53 minutes).

4): Jackson Martinez - FC Porto

Back into the bank-breaking category, Martinez, has a transfermarkt.co.uk valuation of £26.5m yet is contractually-bound to one of the shrewdest negotiating clubs in world football. Martinez, though, could well represent value for money having returned 18 goals from 26 matches. The Colombian has been linked to Juventus, Real Madrid, Chelsea and Tottenham Hotspur. Porto must brace themselves for firm offers this summer.

5): Mario Mandzukic - Bayern Munich

Experienced silverware-magnet Mandzukic would no doubt boost Arsenal's overall quality level, like Costa, due to the manner in which he approaches matches. He has a great work-rate and is a born winner, something Arsenal lack. His agent was apparently in London for talks with a Premier League club last month, yet Chelsea are also interested in the Bayern attacker who may be shouldered out of the primary strike role due to the imminent arrival of Robert Lewandowski. Mandzukic has scored 17 and assisted six in Bundesliga competition this season.

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