A run of high-profile injuries in the NFC West specifically and the NFL in general has focused attention on what can be done to prevent them.John from Bakersfield, Calif., was among those raising the subject through the NFC West mailbag. He suggested the San Francisco 49ers and Baltimore Ravens might be additionally vulnerable at present after playing more games than other teams over the past couple seasons. Baltimore (38 games), San Francisco (37) and New England (37) have played the most games over that span.