This season has been chock full of young stars rising up to the challenges of the big leagues. With the summer months under way, plenty of rookies have been getting hot, showing that they deserve to stick in the majors to build their careers. As the month of June approaches an end, which rookie has this weeks most impressive numbers?

Today’s Rookie of the Week is…Gaby Sanchez!

Gaby Sanchez, selected by the Florida Marlins in the 4th round of the 2005 MLB draft, has had an amazing month of June. After he was given the first base job out of spring training, he got off to a somewhat slow start; however, he has raised his batting average over .300 and has solid numbers overall. In June, Sanchez is hitting .395 with 4 HRs and 13 RBIs, and has more walks (8) than strikeouts (7). Since June 11, he is 23 for 50, including two of his three stolen bases on the season. He’s riding an eight game hitting streak, of which six are multi-hit performances. With a lineup like the Marlins, expect Sanchez to get plenty of RBI opportunities. He is available in 88% of Yahoo! Formats, so take a flyer on him if you need a first baseman.

Advice: He gets on base and produces a lot of runs. Add in deep leagues.

Honorable Mention:

Brennan Boesch, selected in the 3rd round of the 2006 MLB draft by the Florida Marlins, has excelled in the major leagues ever since his debut. In the month of June, Boesch is batting .372, including 7 HRs and 17 RBIs, helping him sustain the lead in batting average among rookies. Since June 11, the outfielder has six multi-hit games, in which he’s blasted four homeruns and driven in ten runs. He has the most impressive and developed swing of all rookies at the major league level, and shows no signs of slowing down. The Tigers are 9-3 in the last two weeks, and its mainly as a result of Boesch’s performance. It’s amazing that he is still available in 49% of Yahoo! Fantasy Leagues, and he should be added if possible.

Advice: There are so many outfield options out there, but how many could you get that hit over .320. Add in all leagues.

Cold Case:

After being recalled to take over the hot corner for the Pittsburgh Pirates on June 16, Pedro Alvarez has struggled at the plate going only 4 for 28 in his first 8 games. The power is there, but the Pirates have yet to see any of it other than his two doubles. The 23-year old was the second overall pick in the 2008 draft, before Buster Posey, Ike Davis, and Justin Smoak to name a few. He won’t hit for average which is why it is important for the kid to show his power at the major league level. He is taken in 13% of Yahoo! Formats.

Advice: Let him remain a free agent. Until he belts a few homers, he is not fantasy team worthy.

On The Way Up?:

Nobody deserves a promotion more than Brett Wallace. The Blue Jays’ first base prospect, who was drafted 13th overall by the St. Louis Cardinals in the 2008 draft, has made a case for himself all season long at Triple-A Las Vegas. It’s been more prominent this past week, as Wallace has gone 14 for his last 30, including three homeruns (14 total on the season), raising his RBI total to 42. With Lyle Overbay’s disappointing season, there is no doubt Wallace is ready to shine in Toronto.

Advice: Wait til he gets promoted before you add him. Keep him on your bench until he settles in.

Do you agree with my choices? Did I miss anyone important? Feel free to comment.