( CNN ) -- It is a timely boost for Barcelona heading into their Spanish title showdown with Atletico Madrid . Lionel Messi , one of the world 's best soccer players , is on the verge of a penning a new deal at the club . The Argentina striker has had a lean season by his own impossibly high standards , but has still scored 28 La Liga goals in his 30 games . Barcelona head into Saturday 's epic title decider against Atletico knowing a win will secure their second successive La Liga crown . And news that the club 's record goalscorer is set to extend his stay at the Camp Nou is a huge fillip for the Catalans after weeks of negotiations . A statement on the club 's official website read : `` FC Barcelona has reached an agreement to adjust the terms in the contract binding Leo Messi to the club as a professional first team player . `` The revised and updated contract will be signed over the next few days . '' Messi joined the Catalans in 2000 at the age of 13 and has gone on to win 21 trophies with Barca , including six La Liga titles and three European Champions League crowns . The 26-year was also voted World Player of the Year in four successive seasons , between 2009 and 2012 , and will be one of the biggest names at the World Cup in Brazil . News of his new contract comes just 24 hours before the biggest match of the season in Spain , as the two title contenders go head-to-head . Atletico , who will also contest the Champions League final next weekend against city rivals Real Madrid , top the table and lead Barcelona by three points . A Barca victory will hand Gerardo Martino 's men the title courtesy of a better head-to-head record against their opponents . Atletico need only to avoid defeat . Just a few weeks ago , after a disappointing home draw with Getafe , Martino said Barca 's title race was run , but an unexpected dip in form by Atletico has presented them with a second chance . And midfielder Xavi , who is chasing an eighth title in Barca colors , insists they must seize this opportunity . `` We really believed we had no chance , but maybe we gave up too soon , '' he told the club 's website . `` We thought we 'd lost the league and these things happen in football , and now it 's in our hands . It 's a very important title , and we have to be together . It 's an historic opportunity . It will be a great final match . `` ( Atletico ) are the best in defense , they pressurize you , support each other , and have different options up front . We are still hungry and people should be encouraged . La Liga should be seen as it is , competing until the end . `` Up against us are a great team . We are still hungry and people should be encouraged . This is a great generation , and this is an historic opportunity for us . `` It 's a unique game and I do n't know if it will happen again . It would be the icing on the cake for this generation , playing such an important match . ''
Argentine striker Lionel Messi agrees a new contract at FC Barcelona . Spanish club announce `` an agreement to adjust the terms in the contract '' New deal will be signed in the next few days say the Spanish champions . Barca face title decider against Atletico Madrid on Saturday .