The Seattle Mariners roster, kept current as moves happen. It lists the full 40-man roster and the active 26-man roster, with each player's uniform number, position, bats and throws, and age.
It also tracks the roster details that drive decisions: minor-league options remaining, arbitration and free-agency timing, how each player was acquired, and his current-season fWAR (FanGraphs WAR). Turn on season notes for a short summary of every player's year, written from MLB and FanGraphs stats. Each player also has his own Baseball Things player page with full stats and Statcast data.