Bosingwa is set to be named in Portugal's Euro 2008 squad

Chelsea have completed the signing of Porto right-back Jose Bosingwa on a three-year contract for £16.2m.

The 25-year-old Portugal international will join up with the Blues after Euro 2008 in the summer.

Bosingwa, who was also a target for Manchester United, was born in the Democratic Republic of Congo but moved to Portugal as a child.

The full-back helped Porto to the 2004 Champions League title and four league championships since signing in 2003.

Bosingwa made more than 40 appearances for Boavista before former Blues boss Jose Mourinho brought him to rivals Porto.

Although he was used sparingly in his first season, the defender, who can also play on the wing, had been the first-choice right-back during the last three seasons.

His performances have earned him seven caps for Portugal and he is expected to be named in their Euro 2008 squad this week.

Portuguese journalist Alberto da Silva, who works for Abola, believes Bosingwa has been overvalued by Chelsea.

"He's a good player but he's not worth that much money," he told BBC Radio 5 Live.

"I think Chelsea's current right-back Paulo Ferreira is a better player. I don't know who negotiated the deal, but he did well for Porto."

Three years ago, Bosingwa was involved in a serious car accident along with four other footballers.

All survived, but Sandro Luis, from a minor Portuguese side, had to have his left foot amputated as a result of the accident.

Bosingwa's arrival at Stamford Bridge will cast doubt over the future of another right-back Juliano Belletti.

The former Barcelona defender, who scored the winning goal in the 2006 Champions League final against Arsenal, has been overlooked by Blues manager Avram Grant in recent weeks, with Michael Essien occupying the full-back berth.