SELECT T1.country_code ,  T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id  =  T2.player_id ORDER BY T2.tours DESC LIMIT 1
Find the first name and country code of the player who did the most number of tours.
SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id ORDER BY T2.tours DESC LIMIT 1
select t1 . country_code , t1 . first_name from players as t1 join rankings as t2 on t1 . player_id = t2 . player_id order by t2 . tours desc limit value
Find the first name and country code of the player who did the most number of tours .