Fantasy baseball Weekend Primer: Orioles-Yankees will be key

Wei-Yin Chen is a bit of a mystery this weekend, as many of the Yankees he's faced are on the DL.

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Notable nuggets on the upcoming weekend action that could swing your fantasy baseball matchup:

The Sunday night game this week pits the Yankees against the Orioles, with pitchers Andy Pettitte and Wei-Yin Chen slated to start for their respective teams. All you Adam Jones owners out there should be excited for Sunday, because Jones is 6-for-17 in his career against Pettitte. On the flip side, Matt Wieters has struggled against the future Hall-of-Fame pitcher, going just 2-for-10.

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Most of the Yankees Chen faced last year are currently on the shelf, but Chen does have a bit of a history against Robinson Cano (3-for-11, one homer, one RBI, four runs) and Kevin Youkilis (2-for-6, one homer, two RBI).

Of course, you don't have to wait until Sunday if you need some help this weekend. There are plenty of attractive stream options who should be available in your league if you're chasing in your pitching categories:

? Colorado's Jorge De La Rosa (owned in two percent of Yahoo! leagues, 0.1 percent of ESPN leagues and 24 percent of CBS leagues) starts in San Diego on Sunday. He has been roughed up a bit this year, but the matchup and environment are both beneficial.

? The Angels' Garrett Richards, who is replacing the injured Jered Weaver in the starting rotation, draws the Astros on Saturday. Richards has five strikeouts in 4.1 innings this season and is available in 98 percent of Yahoo! leagues, 99 percent of ESPN leagues and 91 percent of CBS leagues.

? Dillon Gee, who is owned in 43 percent of CBS leagues but is available to the tune of at least 90 percent of leagues on Yahoo! and ESPN, starts for the Mets in Minnesota on Sunday. He was rouged up in his second outing of the season, giving up three home runs to the Phillies, but should bounce back this weekend.

? Finally, be on the lookout for Brandon Moss this weekend. He hit .291/.358/.596 last year, and his recent surge has him up to .400/.500/.720 with a pair of homers in 30 plate appearances this year. He's still widely available for the time being, but that might not be the case for much longer if he continues to swing a hot bat.

Enjoy the games this weekend. We'll see you next week.