The Portuguese international joins the defending league champions on a free transfer after leaving Greek outfit Larissa in December. He joins the Buccaneer's ship on an 18-month contract and will join his teammates for his first official training session on Wednesday.
Pirates announced that their latest acquisition will not feature in the African Champions League as the club has already submitted their 25-man to CAF.
Boa Morte began his career with Portuguese giants Sporting Clube de Portugal, spending time on loan to junior club Lourinhanense.
His England journey began in 1997, when he was snapped up by Arsenal for a reported fee of £1.75m pounds. At Gunners he went on to record 40 appearances and score 4 goals. Two years later he moved to Southampton for about £500 000, making 17 appearances and scoring once.
His initial move to Fulham in 2000 was a season-long loan, as he helped them gain promotion scoring 18 goals in 39 matches for the Cottages. The move was made permanent in 2001, and that is where Boa Morte made his mark in the English game.
At Fulham he went on to record a staggering 250 matches and score 54 goals in the process. In 2005 he was handed the captain's armband and went on to play for two more years up until West Ham United came knocking and signed Boa Morte for £5m on a three=and-a-half year deal.
In his first season with the Hammers, he made 16 appearances. He went on to play over 90 matches for the Londoners and score two goals in the process.
In 2011, Boa Morte parted ways with West Ham on mutual consent and this marked the end of his 14-year journey in the English Premiership.
In August 2011 Boa Morte signed a two-year contract with Larissa, where he rejoined former coach Chris Coleman whom he worked with for over four years at Fulham. However, his stay was short-lived -- just six months into his stay, Boa Morte parted ways due to financial problems at the club.
Meanwhile, Pirates also announced they had released Lucas Thwala, Chiukepo Msowoya and Patrick Malokase to Platinum Stars for the rest of the season.