Two leading American suppliers of sports protection equipment with operations also in Europe, Shock Doctor Sports and McDavid, announced last week an agreement to merge. Aside from their compression apparel, the product ranges of the two companies are largely complementary. Owned by Bregal Partners, a private equity investment company, Shock Doctor is a leader in mouthguards, sports insoles and a variety of protective accessories. McDavid specializes in sports medicine and supplies ankle braces and knee guards, among other products. Tony Armand, president and chief executive of Shock Doctor, will act as president of the combined group. Bob McDavid, president and CEO of McDavid, will be the chairman. No other details could be obtained pending the completion of the merger, which is expected to take place during the second quarter.