The San Francisco 49ers were working to re-sod the field at new Levi's Stadium on Thursday, a day after a public workout was cut short and moved to the regular practice fields because players were slipping. San Francisco hosts the San Diego Chargers at the $1.2 billion stadium on Sunday at 1 p.m. PDT, and the team has said it expects to have the field ready in time. ''The 49ers organization would like to apologize to any fans who were inconvenienced by today's practice ending early,'' the team said Wednesday. ''We have determined the appropriate measures necessary to have the field ready for Sunday and look forward to hosting the San Diego Chargers.'' Coach Jim Harbaugh moved his team out of the stadium Wednesday about an hour into the practice. More...