Barely a week into the season, the Giants and Fantasy Owners have to deal with an injury that could keep Brian Wilson out for the season. An MRI on Wilson’s elbow showed structural damage and he is in the process of getting a second opinion, but the outlook is bleak.  If he undergoes Tommy John surgery, the likely outcome, he’ll miss the remainder of the 2012 season.  Who will take over closing duties in San Francisco? When Wilson went on the disabled list in mid-August, Manager Bruce Bochy employed a closer-by-committee approach. For the short term, it sounds as if Bochy will use his bullpen the same way. Santiago Casilla went 6-for-6 in save opportunities last year and could emerge as the main guy.

In other fantasy news:

• Devin Mesoraco may be the Reds’ catcher of the future, but veteran-loving manager Dusty Baker seems to prefer a weak hitting Ryan Hanigan in the present. That’s not necessarily a surprise to Fantasy owners, but Hanigan’s four starts in the team’s first seven games confirms it. Mesoraco is just a low-end No. 2 catcher in mixed leagues, despite his upside.
• The Red Sox received the worst possible news regarding Jacoby Ellsbury and he was placed on the 15-day disabled list on Saturday. Ellsbury is expect to miss 6-to-8 weeks.
• It was a tough night for a couple top tier closers on Saturday in the National League. Heath Bell and J.J. Putz blew a saves. For Bell, it was his second blown save.
• David Freese was a last minute scratch on Saturday and is going to miss a couple days with a finger injury. Its a wait and see situation.
• Yu Darvish much better on Saturday in his second outing at Minnesota, but walked away with a no-decision. Darvish still threw too many pitches as he threw 102 pitches over just 5 2/3 innings. Still, he allowed just one earned run on nine hits and four walks, striking out four.
• Henderson Alvarez, one of my favorite sleepers, made his second start of the season on Saturday against the Orioles. He allowed three runs on six hits over seven innings of work. Alvarez also struck out two and walked one in the no-decision.