The Seattle Mariners are an intriguing team that is difficult to predict as we barrel towards the 2023 MLB Trade Deadline. They have a solid roster that could get hot and make the playoffs, but clearly have areas that need improvement. However, they also have shown they don't want to spend too much money in building their lineup.Rumors, updates, and latest transactionsJuly 26The Mariners acquired talented relief pitcher Trent Thornton from the Toronto Blue Jays.Jeff Passan@JeffPassanReliever Trent Thornton is being traded to the Seattle Mariners, sources tell ESPN. He was DFA’d last week when the Toronto Blue Jays acquired Genesis Cabrera. Headed to the Blue Jays is infielder Mason McCoy, currently in AAA. twitter.com/i/web/status/1…2220313Reliever Trent Thornton is being traded to the Seattle Mariners, sources tell ESPN. He was DFA’d last week when the Toronto Blue Jays acquired Genesis Cabrera. Headed to the Blue Jays is infielder Mason McCoy, currently in AAA. twitter.com/i/web/status/1…July 31 - The Seattle Mariners are trading Paul Sewald to the Arizona DiamondbacksThe Mariners are surprisingly trading away their closer, Paul Sewald, to the Arizona Diamondbacks. In exchange, they are aquiring a trio of talented players, two that are already major leaguers.Ken Rosenthal@Ken_RosenthalDiamondbacks IF Josh Rojas, OF/1B Dominic Canzone and IF Ryan Bliss going to Mariners for reliever Paul Sewald, source tells @TheAthletic. First with deal: @nickpiecoro834213Diamondbacks IF Josh Rojas, OF/1B Dominic Canzone and IF Ryan Bliss going to Mariners for reliever Paul Sewald, source tells @TheAthletic. First with deal: @nickpiecoroSeattle Mariners trade A.J. Pollock and Mark Mathias to San Francisco GiantsThe Seattle Mariners offloaded the struggling A.J. Pollock and Mark Mathias to the San Francisco Giants in exchange for a player to be named later. Being traded for a player that hasn't even been chosen yet has to be the most insulting trade for any player, but it makes sense in this case. Daniel Kramer@DKramer_The Mariners are sending AJ Pollock and Mark Matthias to the Giants, as @JeffPassan noted.The return is a player to be named later, according to a source.15527The Mariners are sending AJ Pollock and Mark Matthias to the Giants, as @JeffPassan noted.The return is a player to be named later, according to a source.