The 24-year-old former Feyenoord midfielder has officially moved to Newcastle from Dutch giants PSV.
Krul, who is teammates with Wijnaldum for the Netherlands national team, is delighted to have him at St. James. Park.
Brilliant signing for Newcastle United
Wijnaldum was one of the better players in the Eredivisie and helped PSV win the league title last season.
The former Feyenoord midfielder scored 14 goals and created 41 chances in 33 Eredivisie games during the 2014-15 campaign.
The 24-year-old had a pass accuracy of 84% and a shot accuracy of 54%, and won 17 headers, 63 dribbles and 26 tackles.
Wijnaldum is Newcastle’s first signing of the summer, and the fans will hope that there will be many more before the start of the 2015-16 campaign.