wp_query with multiple fields not working

I have a custom content type called sportpages. It has fields called ecpt_link and ecpt_season. Link is a checkbox and season is a select box.

I have one post with link set to “on” and a season of “Fall”.

Using wp_query this works to get that one:

$args = array(
        'post_type' => 'sportpages'
        ,'post_status' => 'publish'
        ,'posts_per_page' => 1000
        ,'meta_key' => 'ecpt_link'
        ,'meta_value' => 'on'
    );

This also worked to get that one:

$args = array(
        'post_type' => 'sportpages'
        ,'post_status' => 'publish'
        ,'posts_per_page' => 1000
        ,'meta_key' => 'ecpt_season'
        ,'meta_value' => 'Fall'
    );

This however gets ALL posts, ignoring everything in meta_query:

$args = array(
        'post_type' => 'sportpages'
        ,'post_status' => 'publish'
        ,'posts_per_page' => 1000
        ,'meta_query' => array(
            array(
                'meta_key' => 'ecpt_link'
                ,'meta_value' => 'on'
                ,'compare' => '='
            )
            ,array(
                'meta_key' => 'ecpt_season'
                ,'meta_value' => 'Fall'
                ,'compare' => '='
            )
        )
    );

I’ve tried it without the comparison operators as well. What am I missing?