According to Jon Morosi of Fox Sports, the Detroit Tigers have scouted and done work on the Miami Marlins starting pitchers. 

Before the question is asked... This will probably not be 22-year-old Jose Fernandez. However, the Tigers and Marlins could be trade partners again with a different starting pitcher.

Two of the biggest options for Detroit to trade for are Dan Haren, a 34-year-old righty or Tom Koehler, who is a 29-year-old right-hander. 

Haren is a bit older than the Tigers would like, but he is only signed through 2015. If the Tigers do not see what they like, they will just let him go to free agency. It would be a nice short-term trade to get Detroit back up to their prime standards. 

Haren, a second round pick in the 2001 MLB Draft by the St. Louis Cardinals has jumped around with seven different teams. Staying with the Arizona Diamondbacks, Oakland Athletics and Los Angeles Angels for three seasons each. 

During 2015, Haren has a 6-5 record with a 3.45 ERA over 16 starts with the Marlins. He has an outstanding 1.05 WHIP and gives up a decent 1.4 home runs per nine innings, which would be a huge upgrade for the Tigers. Anibal Sanchez, who has been healthy all season, has given up 1.5 home runs per nine innings, but most come in the first inning, making it much worse than the numbers show. 

Haren, from Bishop Amat Memorial High School in La Puente, California, has a career 148-127 record with a 3.75 ERA and 1.18 WHIP over 13 seasons. 

Koehler, David Phelps and Mat Latos are all possible options for trade, but Haren makes the most sense at this point in time. 

Koehler, 29, is 6-4 with a 3.66 ERA and a 1.26 WHIP. Phelps, 28, is 4-4 with a 4.20 ERA and a 1.31 WHIP. Latos, 27, is 3-5 with a 5.27 ERA and a 1.40 WHIP. 

The Tigers have hooked up with the Marlins for trades twice since 2007. In 2007, they acquired Miguel Cabrera and Dontrelle Willis and in 2012, the Tigers recieved Anibal Sanchez and Omar Infante. 

The 2007 trade sent Cabrera and Willis to Detroit in exchange for prospects, at that time, Andrew Miller and Cameron Maybin.

Miller has turned out to be a pretty good reliever and Maybin is attempting to reinvent himself with the Atlanta Braves. Cabrera turned out to be a two-time American League MVP, nine-time American League All-Star, three-time American League batting champion, two-time American League Hank Aaron Award winner and the 2012 American League Triple Crown winner. He is practically a lock for the Hall Of Fame. 

The 2012 trade was not as crazy, but it was sill very beneficial to Detroit. Detroit gained Sanchez and Infante, while giving up pitching prospect Jacob Turner and two minor leaguers. 

Sanchez won the 2013 American League Pitching Title and finished fourth in the Cy Young voting that season. He finished 2013 with a 14-8 record with an American League best 2.57 ERA over 29 starts. 

Infante spent the end of 2012 and the full 2013 season with the Tigers. In 2013, he hit .318 with 10 home runs and 51 RBI over 118 games. He eventually made his way to the Kansas City Royals, where he is currently set to start at second base for the American League in the 2015 All-Star game. 

On the other side of the deal, Turner struggled for Miami. In his three seasons, he went 8-19 with a 4.41 ERA over 47 appearances and 39 games started. He pitched for the Chicago Cubs at the end of 2014 and went 2-4 with a 6.49 ERA. The 24-year-old has not appeared in the Major League during 2015. 

The Marlins are 34-46 this season, which puts them 10 games behind the Washington Nationals for first place in the National League East. 

The Tigers are 39-39, which is far below expectations. They are 6.5 games back of the Royals for first place in the American League Central.