"That was my biggest thing … that there was no structural damage," Maybin told MLB.com on Tuesday.
Maybin was out of the lineup for the fourth straight game on Tuesday with swelling in the bursa sac of his knee.
The Padres won't determine whether Maybin needs a trip to the disabled list until the team returns home on Thursday.
Maybin has been hampered with a knee issue since the team's May 13-15 series in Colorado.
Rookie Blake Tekotte has replaced Maybin in center in each of the last four games.For more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed.