Table: lit_davis_cup_players
Columns: player
current_singles_ranking
current_doubles_ranking
first_year_played
ties_played
total_w_l
singles_w_l
doubles_w_l

Question: What is the Singles W-L for the players named  Laurynas Grigelis?
SQL: SELECT "singles_w_l" FROM lit_davis_cup_players WHERE "player" = 'Laurynas Grigelis'

Question: What is the Current singles ranking for the player named Mantas Bugailiškis?
SQL: SELECT "current_singles_ranking" FROM lit_davis_cup_players WHERE "player" = 'Mantas Bugailiškis'