Jordan Walden, rhp, Angels: Has any organization had a worse April than the Angels? With key injuries in the big league rotation and lineup, an 8-11 start (third in the American League West), the tragic death of Nick Adenhart and having a pair of their top pitching prospects go on the seven-day disabled list last week, it hasn’t been the best of times for the Angels. Now Walden is on the DL, too, with inflammation in his right elbow. The Double-A Arkansas righthander was scheduled to have an MRI on Monday.

Lorenzo Cain, cf, Brewers: Cain didn’t join Double-A Huntsville until April 20 after nursing a sore hamstring back to health. He returned for four games, then injured his left knee while attempting a diving catch at Carolina on Thursday. The speedy 22-year-old will miss four to six weeks with a torn posterial cruciate ligament, a much better diagnosis than what was originally feared as a possible season-ending anterior cruciate ligament tear.

Kelvin De La Cruz, lhp, Indians: Hard to script a better start to a season than what de la Cruz, Cleveland’s top starting pitching prospect, had for high Class A Kinston in his first two starts. He pitched 12 innings, posting a 1.50 ERA with two walks and 19 strikeouts. But the Indians had to scratch 20-year-old Dominican from his next scheduled start on April 19 with tightness in his left forearm, and he hasn’t pitched since. The Indians could know more in a few days when de la Cruz goes to Cleveland to see the team’s medical staff there.

Adam Miller, rhp, Indians: Miller has appeared in six editions of the Prospect Handbook, checking in at No. 4 in the Indians system last year and topping the list the previous four years (he was No. 9 in 2004 after going 31st overall in the 2003 draft). Unfortunately for Miller, he looks destined to make an appearance in the 2010 Prospect Handbook after having season-ending finger surgery yesterday. Miller, who has also battled shoulder soreness and a series of elbow woes during his professional career, originally strained the finger in May 2007 with Triple-A Buffalo. In spring training in 2008, Miller had a blister on that same finger and pitched through it early in the season, but ultimately had to shut it down after six starts and missed the rest of the season. After showing a fastball that flashed into the mid-90s and a slider that graded out as at least a plus pitch in winter ball in the Dominican League, Miller came into spring training looking to compete for a job in Cleveland’s bullpen. Instead he came down with finger soreness, which led to surgery on April 28. At this point, it’s anyone’s guess as to how much of an impact this latest setback will have on Miller, who turns 25 in November, given how it might affect the quality of his stuff and the cost of further developmental opportunity.

Wilfredo Boscan, rhp, Rangers: With an ERA of 0.51, three walks and 15 strikeouts in 17 2/3 innings through his first three starts, Boscan looked like he might not need much more time with low Class A Hickory. Instead Boscan has landed on the seven-day DL with a strained muscle in his side, according to the Hickory Record.

Tyson Ross, rhp, Athletics: Ross’ quirky delivery—short stride, stiff plan leg, cuts off extension—has always made scouts concerned about his durability. Ross now finds himself on the seven-day DL retroactive to Sunday with biceps tendinitis. A second-round pick out of California last year, Ross pitched in four games for low Class A Kane County after signing but landed on the disabled list last July with a strained shoulder. This year Ross, 22, has made three starts for high Class A Stockton, putting up a 4.40 ERA with six walks and eight strikeouts.

Brian Friday, ss, Pirates: Friday was one of the minor league’s best hitters early on, as the 23-year-old was 11-for-22 with a homer, two triples, a double and six walks through Double-A Altoona’s first six games. Friday has missed time lately, however, as the Pirates placed him on the seven-day DL with an inner-ear infection, according to Pirates correspondent John Perrotto. Friday hasn’t played since April 16.

Drew Cumberland, ss, Padres: When Cumberland has been on the field, he’s shown an intriguing skill set of contact-hitting ability. a quick swing from the left side and plate discipline, though the power isn’t quite there for the 2007 supplemental first-round pick. The problem for Cumberland, 20, has been staying on the field. He’s on the DL for low Class A Fort Wayne now with a strained right quadricep, one year after playing only 56 games due to a jammed right index finger and a pulled ribcage muscle.

Quick Hits: The A’s placed outfielder Corey Brown on the seven-day DL. Brown was off to a .345/.457/.448 start in nine games for Double-A Midland . . . The Reds placed 25-year-old Drew Sutton on the seven-day DL. The Reds acquired Sutton, who had played five games with Triple-A Round Rock this year, from the Astros on April 16 as the player to be named later in the deal that sent Jeff Keppinger to Houston . . . The Diamondbacks placed low Class A South Bend catcher Ryan Babineau on the seven-day DL. The move is more interesting because it means that 19-year-old Rossmel Perez, an interesting sleeper prospect from Venezuela with a good knack for the strike zone, will move from extended spring training to replace Babineau. Perez is off to a 2-for-5 start with a double and a walk.