It was already a Fenway day that Red Sox fans won't soon forget, filled with emotion and civic pride.

But with four outs remaining, Boston -- as the home jerseys uniquely stated on the front for Saturday's game -- needed a big hit to make it a winning day.

And Daniel Nava provided it, clocking a three-run homer into the Boston bullpen, fueling a 4-3 victory by the Red Sox, who have won seven in a row.

When the switch-hitter stepped to the plate against Kelvin Herrera with two outs in the eighth, the Red Sox were down 2-1.

But Nava absolutely unloaded, giving the Fenway fans one more reason to roar.

It was sweet redemption for Nava, who was picked off at second in the seventh when Boston was trying to rally.

This was the first home game for the Red Sox since the tragic bombings at the Boston Marathon killed three people and injured 176 others.

After a stirring pregame tribute, capped with David Ortiz reminding everyone that "This is our … city", the Red Sox turned their attention to baseball.

It was another terrific performance by Clay Buchholz, who went eight innings while scattering eight hits but just two runs. The righty walked one and struck out six.

Buchholz and James Shields engaged in just the type of duel you'd expect between two of the best right-handers in the American League.