By Justin Barrasso But he’s also working with Special Olympics ahead of a potential showdown in Cardiff in September. SI.com’s Week in Wrestling is published every week and provides beneath-the-surface coverage of the business of pro wrestling. Drew McIntyre on his involvement in Special Olympics and his WWE championship chaseDrew McIntyre is on a direct path toward Roman Reigns. A two-time WWE champion, McIntyre wants a title shot against Reigns at the UK-based Clash at the Castle pay-per-view in Cardiff this September. But that card is two months away, which means he needs to continue to sho…