The Blues' signing of the Atletico Madrid striker should be the jolt that Arsene Wenger needs in the transfer market.
Olivier Giroud was tasked with leading the line for majority of the season, and the Frenchman played a whopping 3081 minutes of the campaign, an average of 81 minutes per game. Only Per Mertesacker and goalkeeper Wojciech Szczesny played more.
Arsene Wenger's mistrust in Nicklas Bedntner, Yaya Sanogo's inexperience, and the Frenchman's inability to sign a forward in January, mean Giroud was tasked with the striking duties virtually every week.
He played 36 times and eventually succumbed to burnout as the Gunners slipped to fourth, and ended up embroiled in a fight for the final Champions League spot with Everton.
Having watched Chelsea wrap up a big-money move for Diego Costa, Wenger needs to use that deal as a springboard towards his own dealings this summer.
Wenger's choice to draft in Kim Kallstrom in January when they were crying out for a striker was the Gunners boss at his baffling and infuriating worst.
If the Gunners are to realistically contend for the Premier League title next season then Wenger needs serious options up top.
He failed with his bid to land Luis Suarez last summer, but he must be looking to recruit that calibre of player this summer, a repeat of the club-record £42.5m he shelled out for Mesut Ozil must be the yardstick.
Despite Giroud's role as undisputed first choice, the Gunners can attract better.
The way Arsenal like to play is to have three mobile, attacking midfielders buzzing around targetman Giroud, continually running beyond the France international, and in that clearly-defined system, Wenger needs a powerful forward.
Romelu Lukaku could perform the role well, and while Chelsea would loathe to lose the Belgium striker to a title-rival, would they be in a position to turn down a £25 million offer for a player who looks like he wants away?
They certainly didn't when Juan Mata made the move to Manchester United in January.
Costa's arrival at Stamford Bridge, means the Blues are unlikely to chase Monaco's Radamel Falcao, and a move for the Colombian striker could be ideal for Arsenal, despite his current injury.
Real Madrid's Karim Benzema is another who has been linked with a move to the Emirates, and Wenger clearly has a number of options in his sights.
However if he is serious about contending next season, then he needs to spend big on a proven goalscorer.