/world sport
(CNN) -- Former European champions Porto are under official investigation for match-fixing in the 2003/04 season and could face relegation to the second-flight in Portugal if found guilty.
Porto president Pinto da Costa, pictured at the club's stadium, is under investigation over match-fixing claims.
The allegations concern two matches, a home game against Estrela da Amadora, which Porto won 2-0, and a goalless draw at Beira Mar.
Porto went on to win the Portuguese league title and the Champions League in a remarkable final season under then-coach Jose Mourinho.
There is no suggestion that Mourinho is involved in the probe but the club's president Pinto da Costa is under investigation and could face a ban of between two to 10 years if found guilty.
The case -- referred to in Portugal as "the golden whistle" -- has been the subject of media speculation for the past four years, but now football authorities have decided to act.
"FC Porto and their president have been notified by the Portuguese Professional Football League (LPFP) of the accusations and investigations concerning matches between FC Porto and Estrela da Amadora, and Beira Mar and FC Porto," said the statement on the Porto club Web site.
Porto have sent the accusations to their lawyers and have five days to submit their defense.
The club could be docked three points from this campaign -- in which they currently lead Benfica by 16 points -- or face relegation to the second division.
Da Costa was charged in 2005 for three offences of active corruption and corrupt practices, but was released because of a lack of evidence. E-mail to a friend 
| Most Viewed | Most Emailed | Top Searches |
From the Blogs: 
Sit tight, we're getting to the good stuff
