Amid a push for their first World Series appearance since 1998, the San Diego Padres are expected to be among the most active trade deadline participants Thursday, with The Athletic's Ken Rosenthal and Dennis Lin reporting that the team is interested in several top trade targets.

According to the MLB insider, the Padres are starting to pursue a trade involving the Athletics' closing pitcher, Mason Miller. With the success that Miller has found in a short time in the big leagues, it would cost a lot for San Diego to land him.

Is star Athletics closer Mason Miller on his way to San Diego? Rumors have been flying all day with less than 24 hours before the MLB trade deadline arrives. On Wednesday evening, longtime reporter Jon Heyman revealed that the Padres are working on a deal to acquire the elite relief pitcher.