Former Netherlands goalkeeper Maarten Stekelenburg has joined Southampton on a season-long loan from Championship club Fulham.
The 32-year-old joined Fulham from Roma two years ago but spent last season on loan in France at Monaco.
Stekelenburg has been drafted in as Fraser Forster suffered a serious knee injury in March.
"Maarten has a wealth of top-level experience," said Saints executive director of football Les Reed.
Southampton will compete in the third qualifying round of the Europa League before the Premier League season begins.
"While Fraser Forster's rehabilitation is progressing well, adding Maarten to our squad alongside Kelvin Davis and Paulo Gazzaniga will give us strength in depth for what will be a busy season," added Reed.
"Maarten enjoyed tremendous success with Ajax and on the international stage, playing in the 2010 World Cup final."
Stekelenburg, who spent two years in Serie A at Roma after leaving Ajax after nine years in 2011, is Southampton's third signing of the summer.
Last week Saints announced the arrivals of Portugal defender Cedric Soares in a deal worth up to £4.7m from Sporting Lisbon and Spain forward Juanmi from Malaga.