Anxiety is building in Wrigleyville. The Cubs ’ recent 10-game win streak was a much-needed reprieve from the fact that 10 pitchers are already injured, just 32 days into the regular season. Then came the one-two gut punch: Saturday night, the Dodgers put an end to Chicago’s streak in Los Angeles, 12-4. Sunday morning, the Cubs announced another slew of roster moves. Most alarming? The team’s sixth reliever is headed to the injured list, bringing the Cubs’ total number of sidelined players to 12. Left-hander Riley Martin was placed on the 15-day IL on Sunday with elbow inflammation, retroactive to April 24. “Yeah, he’s got an elbow issue, we’re gonna send him back to Chicago and do tests,” Counsell said before Sunday’s game in Los Angeles. “We’ll know… probably more either tonight or Tuesday morning.” Craig Counsell announced today that Riley Martin will return to Chicago to do testing on his elbow and they will know more details in the coming days.…