Free-agent starting pitcher James Shields remains focused on continuing his major league career, and officials from the Tigers, Indians and Rangers have observed his throwing sessions in recent weeks, according to sources. The 37-year-old wasn't close to signing with a team as of Monday night, but his market is expected to take shape in the coming weeks. Dallas Keuchel is the most coveted free-agent arm, but he is increasingly likely to wait until after next month's draft before signing. The T[...]