Dear Jin , previous answer is wrong. Kreedakaya (In Sinhala: ක්‍රීඩකයා ) means the player (One Player). If you want to cheer up a group of players write some cheer words in English so everyone can understand. Sinhala language has also taken many English cheer-up words from English. You can use the word hooray! (in Sinhala : හුරේ ). But that is a very generic one. Hope this helps.

Thank you for answering me... and does " Kreedakaya" mean same as "hooray!" or " go! go!" ? I want to write down on a banner for a game...

Kreedakaya