After losing Corbin Burnes in free agency, the Baltimore Orioles appear to be focused on the trade market to upgrade their rotation going into the

The Seattle Mariners infield remains the organization's biggest question mark a little more than a month until pitchers and catchers report to Spring Training.

The Seattle Mariners and Baltimore Orioles might be looking to swing a big trade.The two teams have discussed a swap involving three-time All-Star right-hander Luis Castillo in recent days, according to MLB Network's Jon Morosi.

According to Jon Morosi of the MLB Network, the Seattle Mariners and Baltimore Orioles have had trade discussions around starting pitcher Luis Castillo. Morosi noted that both teams have had discussions over the recent days and a potential trade would work since the Orioles would be able to take

The Mariners are open to trading Luis Castillo, but they haven't received the sort of offers they were hoping to get.

The Seattle Mariners are yet to find a solution to any of their problems. Payroll problems have continued to narrow their options, and targets keep flying off the board.

Jordan Montgomery could be on the trade block for the Arizona Diamondbacks, and the Mariners could be in position to swoop in, at least according to one outlet.