SAN DIEGO -- In their continued effort to make rookie Matt Harvey as relaxed as possible, the Mets on Sunday reunited Harvey with his most frequent batterymate: Rob Johnson, who caught Harvey often during his four-month stint at Triple-A Buffalo. "I want Matt to feel as comfortable as he can," said manager Terry Collins, who has paired Johnson with Harvey twice in three starts. "I thought Rob did a great job the first outing with him. I just thought it would be a good matchup for him to catch Matt today." Collins said earlier this week that he also wants starting catcher Josh Thole to grow comfortable catching Harvey, which is why those two formed the battery for the rookie's second start. But as Harvey adjusts to the big leagues, the veteran Johnson can be a valuable crutch. Harvey has often cited Johnson as one of his biggest influences in the Minor Leagues.