Costa, who earns a reported £150,000-a-week, was linked with a move to Liverpool during his spell with Atletico Madrid; however, a transfer failed to materialise, and Costa went on to establish his reputation as one of European football’s best strikers before sealing a move to Chelsea in the summer.
Aldridge believes Liverpool have missed out on a genuine top-class striker, and admits he would love to see the Brazil-born Spain international plying his trade at Anfield.
Aldridge: Costa would be great at Liverpool
"Gone are the days when every player wanted to sign for Liverpool given the chance,” he told the Liverpool Echo. “Chelsea and Arsenal are both regular Champions League competitors, can pay phenomenal wages – but most importantly for some players are based in the capital city.
"I don’t know if that’s why Diego Costa decided to join Chelsea rather than come to Liverpool when he had the chance a couple of years ago – but I would love to see him in a red shirt.”
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Aldridge a huge fan of Costa
"I would love to see him in a red shirt." - John Aldridge.
Aldridge went on to explain the reasons why Costa is guaranteed to become a superstar at Stamford Bridge. The former Atletico star has scored a magnificent 10 goals in 12 appearances and has settled into his new surroundings quicker than even Jose Mourinho could have expected.
"I’m old fashioned when it comes to strikers and I love to see centre-forwards who are a real pain to play against, who give defenders hell all match and, of course, who can finish,” Aldridge added. "Costa will get his fair share of red cards I’m sure, but that will be outweighed by the number of matches he wins for Chelsea with his attitude, his aggression – and his goals.
"We need more players of his calibre at Anfield."
Liverpool bid for Costa in 2013
Liverpool attempted to sign Costa from Atletico Madrid in August 2013, tabling a £21 million offer for the South American’s services. A transfer may well have happened had Atletico not sold Radamel Falcao to AS Monaco, but Atleti boss Diego Simeone opted to keep Costa at the Vicente Calderon and make him his first-choice centre-forward.
Costa went on to enjoy a remarkable season, scoring 36 goals in 52 appearances in all competitions, helping Atletico win their first La Liga title since 1996 in the process. His goals also helped Atletico reach the Champions League final, where they came agonisingly close to becoming European champions for the first time, before being denied in the dying seconds by local rivals Real Madrid.
Liverpool missing Suarez
Costa bares similar attributes to Luis Suarez, who Liverpool have failed to replace. The Uruguay international, who was the Premier League’s top scorer last season, joined Barcelona in the summer - and Brendan Rodgers’ side have struggled ever since.
Liverpool took a calculated risk on Mario Balotelli, but it’s a gamble which has backfired so far. The Italy international has failed to score a single Premier League goal this season, despite having made seven appearances for the Merseyside outfit.