As the MLB trade deadline is looming ahead, Arizona Diamondbacks starting pitcher Zac Gallen could soon see his name in the rumor mill.

In his fourth season with the Diamondbacks, Gallen has opened up the campaign on quite a promising note. He currently boasts a 2.32 ERA in 50.1 innings pitched. He has had several stout showings so far in the season, which include his notable performance against the Colorado Rockies on May 8 where he recorded seven strikeouts over 7.0 innings pitched.

According to the New York Post’s Jon Heyman, teams are “hopeful” that the Diamondbacks will ultimately decide to open the door to trade offers for Gallen, who is arbitration-eligible for three more seasons.

However, there is an understanding that the Diamondbacks plan to keep him on the roster past this season's trade deadline “unless they get an offer they can’t refuse.”

Heyman further noted that according to one person in the Diamondbacks organization, a trade involving the right-hander “won’t happen.”

The Diamondbacks defied the odds earlier in the campaign when they moved to three games over .500 following their home victory against the Miami Marlins on May 10. They have had a roller-coaster run since then, which includes a six-game losing streak and a run of five wins in six contests.

It remains to be seen on just how Diamondbacks team officials will elect to plan for the MLB trade deadline and whether the team could emerge as a buyer now taking into account the league’s addition of a third spot in the wild-card races.