Andrew Baggarly in the San Jose Mercury News reports that the San Francisco Giants are considering a deal that would send young RHP Tim Lincecum to the Toronto Blue Jays for All-Star outfielder Alex Rios.

The Giants have a number of young arms, including Lincecum, Matt Cain, and Noah Lowry but are looking to add some punch to their offense.

Rios is arbitration-eligible, and according to Baggarly’s industry sources it is estimated he would command at least $6 million next season. He could become a $10 million-a-year player even before hitting free agency after the 2010 season if he continues producing at his current pace.

Baggarly writes that some in baseball wonder if the Giants have concerns about Lincecum’s durability because of his slight build and high-effort delivery.