There are currently 17 sets of brothers that are in the majors, or have played in the majors and are trying to get back in the minors. Lets take a look...
B.J. & Justin Upton- Boss Man Jr. (BJ) has regressed this season while playing center field for the Tampa Bay Rays. The younger Justin really came into his own this season with the Diamondbacks, but is currently laid up on the DL.
Delmon & Dmitri Young- Delmon is the younger (23 years old) more talented of the two, but he's taken a step backwards this season with the Minnesota Twins. Dmitri has diabetes and has been injury prone. He's spent the 2009 season in the Washington Nationals minor league system, but at the age of 35 it appears his career is coming to an end.
Jayson & Laynce Nix- Jayson has found his niche as a utility player on the Chicago White Sox, while Laynce has been a solid 4th outfielder for the Cincinnati Reds after 3 disappointing years with the Brewers.
Cesar & Maicer Izturis- Cesar is playing shortstop for the Baltimore Orioles and Maicer is playing all over the diamond for the AL West leading Los Angeles Angels.
Jeff & Jered Weaver- both are on 1st place teams in the West divisions. The older Jeff is in the Dodgers bullpen, making spot starts. Jered meanwhile has a sparkling 47-23 record with a 3.81 ERA pitching for the Angels over the past 4 seasons.
Bengi, Jose, & Yadier Molina- known as the Catching Molina Brothers, this trio are all on playoff contending teams (Bengi- San Francisco Giants, Jose- New York Yankees, Yadier- St. Louis Cardinals).
Erick & Willy Aybar- like Maicer Izturis, Erick is a very versatile player for the Angels. Willy is helping the Rays in their quest to return to the postseason.
Scott & Willie Eyre- Scott is the situational lefty out of the defending World Champion Philadelphia Phillies bullpen, while brother Willie continually bounces up and down from majors/minors with the Texas Rangers.
J.D. & Stephen Drew- JD has great talent, but can't seem to stay healthy, as he's missed time every season with nagging injuries (currently with Boston Red Sox). Stephen is becoming a reliable MLB shortstop with the Arizona Diamondbacks. Their older brother Tim was a pitcher, but has since retired.
Adrian & Edgar Gonzalez- for the San Diego Padres Adrian hits bombs, Edgar just seems to occupy space to keep little brother happy.
Jerry & Scott Hairston- both were dealt midseason, but only Jerry was thrust into a playoff hunt. Jerry went to the Yankees, while Scott ended up with the Oakland Athletics. They come from a baseball family as their grandfather, dad, and uncle were all MLB players too.
Orlando & Jolbert Cabrera- Orlando has had himself a fine career playing SS, and is currently with the Twins. Jolbert is toiling in the Orioles minor league system waiting to be recalled.
Chris & Shelley Duncan- the sons of pitching guru Dave Duncan have had their ups and downs in the majors. Earlier this season the Cardinals traded Chris to Boston, where he is playing for their Triple-A team. Meanwhile, Shelley is with the Yankees Triple-A squad.
Adam & Andy LaRoche- Andy is the LaRoche still with the Pittsburgh Pirates, as Adam was dealt to the BoSox and then again to the Atlanta Braves where he's currently help power them into Wild Card contention.
Livan & Orlando Hernandez- the brothers from Cuba have experienced more than they ever dreamed possible. Livan has a rubber arm and seems to always find a team in need of his services no matter how poorly he pitches. He's currently losing games for the New York Mets. Orlando, El Duque, has pitched for the Rangers minors this year, but the 43 year old seems to be done.
Julio & Ruddy Lugo- Julio went from one playoff contender to another (Boston to St. Louis), he's playing SS and 2nd. Ruddy hasn't appeared in a MLB game since 2007, but he's trying to get back with the Detroit Tigers organization.
Corey & Eric Patterson- Corey is so overhyped and has never produced anything close to all the hoopla. He was released by the Nationals earlier this season and is now with Milwaukee's Triple-A team. Eric is an OF/2B for the A's.
Jackson 5- ABC