SAN DIEGO -- William Myers and Austin Hedges remained out of the Padres' starting lineup Tuesday night, as they continue to battle nagging injuries that the club has termed "day to day."
Myers was removed from Monday's game with soreness in his lower-right triceps, just behind his elbow. X-rays revealed no structural damage, and the club is hopeful the tenderness subsides over the next couple days. The Padres are optimistic Myers will avoid a stint on the disabled list, but they haven't ruled it out.
The injury to Hedges, meanwhile, seems a bit less severe. He has been a late scratch on consecutive nights because of upper-back tightness. But the Padres were confident enough in Hedges' health that they opted not to recall catcher Raffy Lopez from Triple-A El Paso. Hedges was available Tuesday night behind starter A.J. Ellis.
"We expect Austin to be our frontline guy," Padres manager Andy Green said. "When the season started, we were hoping for 130 games out of him, and we still have that hope. How long you can go with just one catcher though? Not too terribly long."
Myers had also been battling back tightness over the weekend, but he returned to the lineup from that on Monday night. After that injury subsided, a new one arose during batting practice on Monday.
Initially, Myers attempted to play through the soreness, and he homered in the first inning. But it only got worse during the game when he made a couple throws to the infield.
Myers is transitioning from first base to the outfield this spring, and he's spoken about the differences in arm angles between the two positions. On Tuesday, Green downplayed the notion that the position switch may have contributed to the injury.
"It was freakish," Green said. "He's coming off an off-day where he hadn't even thrown ... and he was in the cage hitting. It's one of those things that could've gotten him anywhere."

Lyles sharp in 'pen
Jordan Lyles threw 39 pitches in three shutout innings of relief on Monday night, recording eight swings and misses in the process. Lyles made 457 pitches as a starter for the Padres last season and missed only 37 bats.
The 27-year-old right-hander appears to have taken favorably to his role in the bullpen, where his velocity is up a tick. But Lyles' small-sample success hasn't come in the manner you'd expect. Most pitchers shrink their arsenal when they move to the bullpen. Lyles has continued to distribute his pitches evenly, getting swings and misses with all five offerings on Monday.
'"I really made an emphasis on throwing everything equally, not falling into a pattern of only fastball/slider or fastball/curveball," Lyles said. "We've used everything a good amount."

McGrath optioned
To clear room for Tuesday night's starter, Tyson Ross, left-hander Kyle McGrath was optioned to Triple-A El Paso before the game. McGrath surrendered a pair of homers in the ninth inning Monday night -- the only hits he allowed in two appearances.
"He's somebody we expect to see soon," Green said. "But we felt like from a bullpen perspective, we should be OK for the time being."
The move leaves the Padres with seven bullpen arms for the first time this season -- and only one left-hander in closer Brad Hand. The Padres started a run of 17 games in 17 days on Monday, so it seems likely they'll add another reliever at some point over the next two weeks.
To make room for Ross on the 40-man roster, shortstop Allen Cordoba (concussion) was moved to the 60-day disabled list.