The Reds have to trim two pitchers from the roster to get 12. They have 15 in camp. Nick Masset will start on the disabled list. The most vulnerable to go are Logan Ondrusek and Manny Parra (above). Ondrusek has struggled mightily. He has a 8.38 ERA and has allowed 16 hits in 9 2/3 innings this spring and he has options. “His command is off and his velocity is down some,” Reds manager Dusty Baker said. “When it’s down, the more you try to create velocity, the less velocity you have.” Ondrusek has assured the Reds he’s healthy. “It’s a little bewildering to some of us,” Baker said. “I’m sure it is to him to as to why.” Parra, the lefty the Reds signed late for $1 million, is 1-1 with a 4.05 ERA in nine games. He’s allowed 14 hits, walked five and struck 11 over 13 1/3 innings. Asked Parra’s role this morning, Baker said: “He’s got to make the team first,” Baker said. “Manny’s better than he’s been here. Fortunately for us, we’ve seen him on the other side. We’ve seen him very good. (If he makes team), it will probably be a situation much like Billy Bray last year — a second lefty, take pressure off (Sean) Marshall.” The other bullpen guy who is theoretically on the bubble is Alfredo Simon. He’s only pitched three times because he was away with the Dominican team for the World Baseball Classic. He has a 9.45 ERA in those outings. But he was OK in his only outing since returning — two innings, one run on three hits against the Cubs Monday.