The Rockies are willing to trade catcher Chris Iannetta, who they have discussed with the Angels. Colorado is looking for pitcher Tyler Chatwood, who was 6-11 with Los Angeles last season, in return. Rival executives said Colorado is seeking multiple players in return for Iannetta, including at least one big-leaguer. Before moving Iannetta, the Rockies would want assurances that they could sign free-agent catcher Ramon Hernandez.