"To place a popular player. Thanks!" is an English equivalent of the French phrase Mettre un joueur apprécié Merci!
Specifically, the present infinitive mettre is "to place, to put". The masculine singular indefinite article un means "a, one". The masculine noun joueur means "player". The masculine adjective/past participle apprécié means "appreciated, popular, well-liked". The interjection merci translates as "thank you, thanks".
The pronunciation will be "meh-treh zhoo-uhr ah-prey-syey mehr-see" in French.