Everton
Permanent / 2017 / 2022

Gylfi Þór Sigurðsson (Icelandic pronunciation: ; transliterated as Gylfi Thor Sigurdsson; born 8 September 1989) is an Icelandic professional footballer who plays as an attacking midfielder for Besta deild karla club Víkingur and the Iceland national team.
Gylfi began his professional career with Reading in the Championship and in 2010, was sold to 1899 Hoffenheim, which was Reading's biggest sale at the time. He was voted Player of the Season for two consecutive seasons: for Reading in 2009–10 and for Hoffenheim in 2010–11. After a season back in English football with Swansea City, he joined Tottenham Hotspur for a reported £8 million transfer fee. In 2014, he moved back to Swansea as part of an exchange for Ben Davies. In 2017 he transferred to Everton for a then club-record transfer fee.
Gylfi made his senior international debut for Iceland in 2010 and has since earned over 70 caps. He represented Iceland at their first major tournament, UEFA Euro 2016, where his country reached the quarter-finals. He also played at his nation's first ever FIFA World Cup in 2018.
Gylfi took part in the 2008 U19 European Championship qualifying, scoring twice in qualification and twice in the elite round, but Iceland lost out to group winners Bulgaria by three points and missed out on the finals. In November 2007, Gylfi made his under-21 debut for Iceland, playing 30 minutes against Germany in a 3–0 loss. He made his first appearance in the 2009 European Under-21 Championship qualifying four days later, coming as an extra-time substitute, and played in the remaining matches. In Iceland's last match, he scored the opener against Slovakia, but Slovakia's Miroslav Stoch equalised to make it 1–1. Iceland failed to qualify for the play-offs but made a bright start to the 2011 campaign. He made his campaign debut in October against San Marino, scoring two goals within 16 minutes in a 6–0 thrashing.
Permanent / 2017 / 2022
Permanent / 2014 / 2017
Permanent / 2012 / 2014
Permanent / 2010 / 2012
In May 2010, Gylfi made his full Iceland debut in a convincing 4–0 win over Andorra and provided the assist for the second goal from a free-kick. Gylfi also helped Iceland's U21 side reach the 2011 UEFA European Under-21 Championship, playing in both play-off legs against Scotland as Iceland won 4–2 on aggregate. In the second leg, Gylfi scored two second-half goals to ensure Iceland won the match 2–1.

Permanent / 2007 / 2010
Youth / 2005 / 2008