This is indigestible problem I have been going through, actually I am trying to list those team who played against the another team. So, when I am manually entering team name in DAX calculation it is showing me desire output but as I am trying to make it dynamic means getting value from SELECTEDVALUE() then it doesn’t showing anything. Below, I have mentioned the code, kindly provide me the solution why it is happening like this?

TeamAgainstScore = 
VAR ctry = "CAN" | **SELECTEDVALUE(Matches[Country])**
RETURN
CALCULATE(
    SUM('Mathces Details'[Score]),
    FILTER(
        'Mathces Details',
        'Mathces Details'[Country] <> ctry &&
        (
            'Mathces Details'[match_id] IN
            CALCULATETABLE(
                VALUES('Mathces Details'[match_id]), 
                'Mathces Details'[Country] = ctry
            )
            ||
            SEARCH(ctry, 'Mathces Details'[match_id], 1, 0) > 0
        )
    )
)