noun

enthusiasm to do or to have something; keenness.

the player showed eagerness to play

keenness,enthusiasm,avidity,fervour,ardour,zest,zeal,passion,wholeheartedness,earnestness,commitment,dedication,impatience,desire,longing,yearning,wishing,thirst,hunger,greed,voracity,voraciousness,appetite,ambition,yen,appetency,fervency,ardency,passionateness