Ruben Tejada (quad) lands on DL

PHILADELPHIA -- New York Mets shortstop Ruben Tejada landed face first in the infield dirt Sunday, after suffering a leg injury while trying to beat out a bunt in the fourth inning of the series finale against the Arizona Diamondbacks.

A day later Tejada landed on the disabled list.

Tejada, who underwent an MRI on Sunday afternoon at the Hospital for Special Surgery in Manhattan, was diagnosed with a strained right quadriceps.

Tejada still had a significant cut on his left cheek Monday as well from his tumble, but said his vision was not affected. Assistant GM John Ricco said team medical staff is confident Tejada did not suffer a concussion.

"The MRI yesterday confirmed the initial diagnosis of a right quad strain," Ricco said. "He was feeling a little bit better today, but still feeling something in the quad, which confirmed what the MRI showed."

Jordany Valdespin, who had been dispatched to Triple-A Buffalo after Saturday's game to clear roster room for the activation of reliever D.J. Carrasco from the DL, was promoted for Monday's series opener against the Philadelphia Phillies.

However, Justin Turner is due to make his first major league start at shortstop in the series opener.

Manager Terry Collins said he wanted Turner to start Monday because Valdespin, a natural middle infielder, had been focusing on learning center field at Triple-A Buffalo. Valdespin will start at shortstop Tuesday, though, according to Collins.

Ronny Cedeno is due to take over the position this weekend in Miami in Tejada's absence, the manager added. Cedeno, on the disabled list with a side muscle strain, was due to play five innings Monday in an extended spring training game in Port St. Lucie, Fla.

Ricco added that the organization considered keeping Tejada active but not in the lineup for five days or so, but decided the DL was prudent given how much of the season remains.

"These strains can linger," Ricco said. "Rather than run the risk of him trying to come back too soon because he sees the team playing short, shut him down, let him recover and get some therapy, and we'll see where we are in 15 days."

Said Tejada: "Everybody wants to keep playing. But sometimes it's much better two weeks of the season than two months. I think it's a much better decision for this time. It's early in the season."

Valdespin, 24, was 0-for-6 with a steal during his first cameo with the Mets.

As for Monday's range-challenged middle-infield defense of Turner and second baseman Daniel Murphy, Collins said: "It's what we got."