function checkPlayerExists(player) {
    console.log("Checking if player exists:", player);
    const allPlayers = [
        ...Object.values(team.starting),
        ...Object.values(teamBench),
        ...teamReserves
    ].filter(p => p !== null);
    const exists = allPlayers.some(p => p.name === player.name && p.type === player.type);
    console.log("Player exists:", exists);
    return exists;
}