Isn't Gaal pronounced with a throat rolling "R"?
You can practice by starting with a "H" sound in the throat and then try to roll over to "R".
You can hear Van Gaal use the "R" sounds several times in this video.
You can practice by starting with a "H" sound in the throat and then try to roll over to "R".
You can hear Van Gaal use the "R" sounds several times in this video.