For every standout player, however, there is a hidden gem that goes about their business quietly and get their flowers once they leave.<\/p>\n
Those unsung heroes are just as important as the 20-goal strikers, and here at 67 Hail Hail, we want to single them out.<\/p>\n
So, with that, here are the five most underated signings Celtic have made since 2020.<\/p>\n
5. Alex Valle<\/p>\n
Alex Valle\u2019s<\/a> time at Celtic was short but sweet and left fans wondering why he didn\u2019t play more often.<\/p>\n Competing with Greg Taylor<\/a> for a starting spot made things somewhat difficult, but he still managed to rack up five assists in his 19 appearances for the club.<\/p>\n Alex Valle Celtic statsYear joined \u2013 2024Trophies won \u2013 Scottish Premiership X1 , Scottish League Cup X1Appearances \u2013 19Goals \u2013 0<\/p>\n Valle\u2019s loan was cut short in January 2025<\/a> after Cesc Fabregas decided to make an offer with an obligation to buy for Como.<\/p>\n He is now playing with Nicolas Kuhn at Como<\/a>.<\/p>\n 4. Carl Starfelt<\/p>\n Signed from Russian Premier League side Rubin Kazan, there was a lot of expectation placed on Carl Starfelt<\/a>.<\/p>\n Because of this, fans tended to judge him a lot harsher than he perhaps deserved, but the Sweden international was always solid.<\/p>\n Carl Starfelt Celtic statsYear joined \u2013 2021Trophies won \u2013 Scottish Premiership X3, Scottish Cup X1, Scottish League Cup X2Appearances \u2013 87Goals \u2013 3<\/p>\n He played his part in three Scottish Premiership<\/a> title wins and was a key figure in Ange Postecoglou\u2019s<\/a> early days.<\/p>\n 3. Giorgos Giakoumakis As well as having a brilliant chant, Giorgos Giakoumakis<\/a> was also very underrated.<\/p>\n Coming in as the back-up to Kyogo was always going to be a difficult test, but the Greek striker more than played his part.<\/p>\n Giorgos Giakoumakis Celtic statsYear joined \u2013 2021Trophies won \u2013 Scottish Premiership X1, Scottish League Cup X2Appearances \u2013 57Goals \u2013 26<\/p>\n His physical presence made him a nightmare to deal with, and people also forget that he was the joint-top goal scorer in the Scottish Premiership, despite playing 21 games fewer in the 2021\/22 season.<\/p>\n Giakoumakis has said he\u2019d like to play for Celtic again<\/a> one day, and he would no doubt be welcome back with open arms.<\/p>\n 2. Aaron Mooy <\/p>\n The definition of one season and done: Aaron Mooy<\/a> was terrific for Celtic.<\/p>\n There were initial hesitations around the decision to bring him in on a free transfer following a brief stint in China, but the Australian soon silenced those doubters.<\/p>\n Aaron Mooy Celtic statsYear joined \u2013 2022Trophies won \u2013 Scottish Premiership X1, Scottish Cup X1, Scottish League Cup X1Appearances \u2013 42Goals \u2013 7<\/p>\n Mooy became a key component of Postecoglou\u2019s side and offered balance in the middle of the park, allowing others around him to flourish.<\/p>\n He retired at the end of that season, but he definitely deserves his flowers.<\/p>\n 1. Liam Scales<\/p>\n There was only ever going to be one player at the top of the tree, and that had to be Liam Scales<\/a>.<\/p>\n Despite being made out to be a scapegoat at times, Scales has been entrusted by every manager that has been at the club.<\/p>\n Liam Scales Celtic statsYear joined \u2013 2021Trophies won \u2013 Scottish Premiership X3, Scottish Cup X1, Scottish League Cup X2Appearances* \u2013 110Goals* \u2013 7*Correct as of October 2025<\/p>\n![\"Giorgos](\"https:\/\/www.newsbeep.com\/au\/wp-content\/uploads\/2025\/10\/GettyImages-1386514712-1024x683.jpg\")
Photo by Ian MacNicol\/Getty Images<\/p>\n