Croatia began their preparations for Euro 2012 in earnest with a 3-1 friendly win over Estonia on Friday, while Russia drew with Uruguay.
First-half goals from Vedran Corluka and Nikola Kalinic earned the hosts a 2-0 lead by the half-time break at Stadion Aldo Drosina, Pula.
Ognjen Vukojevic added a third with nine minutes remaining, before Konstantin Vassiljev netted a consolation goal for Estonia on 83 minutes.
Slaven Bilic s Croatia go up against Norway in another friendly on June 2, before beginning their European Championship campaign with a match against Group C opponents the Republic of Ireland in Poznan on June 10.
Also on Friday, Euro 2008 semi-finalists Russia played out a 1-1 draw against Copa America holders Uruguay in Moscow.
The South American visitors took the lead on 48 minutes through Liverpool striker Luis Suarez, only for Alexander Kerzhakov to level for the hosts less than 60 seconds later.
Russia are drawn in Group A of Euro 2012, and will begin their tournament against the Czech Republic in Wroclaw on June 8.
Also on Friday, Belgium played out a 2-2 draw at home to Montenegro, in a match between two sides which narrowly failed to reach the European Championships.
Visitors Montenegro took the lead as early as the fifth minute in Brussels through Juventus star Mirko Vucinic.
Kevin Mirallas levelled for Belgium on 25 minutes, and English Premier League target Eden Hazard made it 2-1 to the hosts when he struck from the penalty spot nine minutes later.
Montenegro earned a draw when Nikola Drincic equalised with 14 minutes remaining.
Finally, Costa Rica defeated Guatemala 3-2 after a friendly in which both teams were reduced to 10 men.