One of the team's positives on a whole, Aviles' first mistake came on a double-play attempt in the first inning, the only time Boston held a lead in a 10-3 loss to the Yankees.
The Yankees, trailing 1-0, had runners on the corners when Mark Teixeira hit a grounder into the shift. Second baseman Dustin Pedroia made a clean pick-up and fired to Aviles, but Aviles appeared to have trouble either getting the ball out of his glove, finding the bag -- or both. The throw to first was late.
According to replays, Aviles looked down and appeared to be searching for second base after receiving Pedroia's throw.
A run scored on the play, tying the game. The next batter, Raul Ibanez, made it 3-0 with a two-run homer. Aviles did not talk after the game.
"I ain't got nothing to say. Sorry," Aviles said as he left the Sox's clubhouse.
According to FanGraphs, Aviles entered the night with 37 double plays started, most among Major League shortstops. His 36 double plays turned tied for him third-most.
"I think we can turn that double play," manager Bobby Valentine said. "We just misfired. Yeah, there were a few double plays in that game tonight we didn't turn. It just happens, I guess."
Pedroia said the play needed to be made.
"[Teixeira] just hit it hard right to me, so I tried to kind of turn and throw it to him," Pedroia said. "And he just kind of, I don't think he found the bag. But we got to turn that ball.
"Especially with the team that they have and the offense like that, we take pride in making sure we turn double plays. And you know, we just didn't do it."
The play was made difficult for Aviles because of the shift. He started the play to the right of the second-base bag -- like a second baseman -- so had to run in one direction to the bag, stop, then throw in the another direction. Said Pedroia, "We just got to know where we are."
The second mistake came in the bottom of the third. The Sox had cut the lead to 3-2 when neither Aviles nor Pedroia could get to a ball to the right of the second-base bag off the bat of Curtis Granderson, with Derek Jeter on first base and none out.
Starting pitcher Aaron Cook nearly snagged the ball back through the box, but afterward said he wasn't as close to the ball as it may have appeared. The Yankees scored a run afterward in the inning.
"I thought Cookie caught the ball, the comebacker," Valentine said. "That would have been a double play. Instead it goes into center field for first and third play, and a couple of runs later."
Aviles appeared to hesitate as the ball scooted between him and Pedroia.
"I went to the base because I thought he was going to be right there, because I was playing over, so it was just one of those ones where it got by us," said Pedroia.