Nigeria striker Obafemi Martins left Inter Milan for Newcastle United for a fee of 15 million euros.
In another match in the Amsterdam tournament, Ajax held Liverpool goalless.
Obafemi Martins scored twice as Newcastle United produced a stirring second-half performance to beat Aston Villa 2-0 on Monday to move off the bottom of the Premier League.
The 21-year-old Nigerian international, who joined Inter in 2002, has scored six goals in all competitions this season.
Substitute Obafemi Martins pounced on an 89th-minute defensive blunder to give Birmingham City a 2-1 upset win over Arsenal in a dramatic League Cup final at Wembley Stadium on Sunday.
Newcastle United collected their first away league win of the season on Sunday when goals from Michael Owen, Obafemi Martins and Danny Guthrie earned them a 3-0 victory at Portsmouth.
Arsenal will need no reminder of the pitfalls in store for them at Wembley Stadium on Saturday where they will be favourites to beat Hull City in the FA Cup final and claim their first silverware for nine years.
Newcastle United grabbed a Premier League lifeline Monday when late goals by substitutes Obafemi Martins and Peter Lovenkrands secured a 3-1 home win over fellow relegation strugglers Middlesbrough.
Chelsea gave their new Brazilian coach Luiz Felipe Scolari the perfect start on Sunday with a stunning 4-0 victory over Portsmouth in their opening Premier League match at Stamford Bridge.
Champions VfL Wolfsburg surged back from a goal down to beat Cologne 3-1 on Saturday to stay top of the Bundesliga after two matches.
Tottenham Hotspur's poor start to the season showed little sign of improving when they were beaten 3-1 by Newcastle United.
LA Galaxy forward Robbie Keane has been named Major League Soccer's Most Valuable Player of 2014.
The defending champions beat Blackburn Rovers 2-0 to move to fourth place in the Premier League.
AC Milan moved smoothly into the quarter-finals of the Italian Cup with a 2-0 win over Palermo.
United down Newcastle after Saints stun Chelsea on a dramatic night in the English Premier League.
