The Brief The Minnesota Vikings start training camp this week at TCO Performance Center. Vikings coach Kevin O'Connell said Kyler Murray and J.J. McCarthy will compete for the starting quarterback job. Ahead of camp, the Vikings added free agent Jamal Adams to the defense, and Brian O'Neill signed a four-year contract extension. The Minnesota Vikings start training camp this week, with rookies and select veterans reporting to TCO Performance Center back on Sunday. The quarterback competitionWhat they're saying:O’Connell said Tuesday the competition for starting quarterback will be between Kyler Murray and J.J. McCarthy.