The Red Sox announced Thursday night that, in addition to Yoan Moncada, the team would be adding catcher Ryan Hanigan, infielder Deven Marrero and pitchers Joe Kelly and Robby Scott to the major-league roster.

Moncada is the obvious headliner, and Hanigan, Marrero and Kelly have all spent plenty of time with the Red Sox this season. You know them.

You probably don't know much about Robby Scott, a 27-year-old left-hander. Here are the basics:

1. Scott has probably been Pawtucket's best pitcher this season. Although mainly a reliever, he's also filled in to make a half-dozen starts, most of them on short notice. He's been effective in either role — the glue a Triple-A pitching staff desperately needs.

"He's done everything. He throws strikes, he pounds the zone. He's been very effective," manager Kevin Boles said of Scott last week. "It's not even about stuff with a guy like this; it's about intelligence, it's about makeup, it's about a guy that's willing to make those adjustments and not have excuses. There are no built-in excuses with him. It doesn't matter what pitch it is, what out it is. He just wants the ball. There's value in that."

2. Scott's role with the Red Sox will probably be more defined. Ideally, he'd continue the success he's had at the minor-league level against left-handed hitters. Scott held lefties to a .147 average, .206 on-base percentage and .253 slugging percentage in Pawtucket this season.

If that role doesn't work out, he can provide length in low-leverage.

3. Scott started his career in professional ball for the Yuma Scorpions, a team that happened to be managed by Jose Canseco. Their third baseman, for a time, was the late Tony Phillips, who at 52 would post a .751 OPS for that team. The North America Baseball League had a team as far east as suburban Chicago, as far north as Edmonton and as far west as Maui — where you would go for a 10-game series, because that's the only way to make the travel really work.

As you can imagine, Scott tells amazing stories about the three weeks he spent with Yuma:

On Canseco: "A lot of people ask me that question. Quite contrary to popular belief, Jose was actually an unbelievable guy. Being straight out of college and going straight into Independent ball and a locker room full of much older guys than what I was, he kind of took me under his wing.

"He didn’t just throw me out to the fire. He wanted to get my feet wet and work my way into it. After about the first week and a half, he pulled me into his office — actually we were on the road, we were playing in Maui — and said, 'Dude, we're going to get you out of here. You don’t belong in Independent ball.'

"Playing for Jose Canseco, it was a really fun experience. I wouldn’t say it's a good experience, because in Independent ball there's no real good experience, but it was definitely a fun experience."

On Phillips: "We walked into the locker room and there's this old guy and we thought he was just kind of like a worker or something. Growing up, I was still pretty young when he was playing, so I didn’t really know him until a couple guys came up to me and I asked them, 'Who's that?' 'Dude, that’s Tony Phillips.'

"So I looked him up on my phone, and 'Is he just in town hanging out?' 'No we signed him.' That night he went out and went 3-for-4 with two doubles.

"Honestly one of the greatest guys I think I've ever met in a clubhouse or locker-room setting. He was absolutely awesome."

On the day he signed: "We had a doubleheader that day, so I got the spot start, and they weren't looking for me to go six or seven innings. It was just eat up a couple innings, and it just so happened there were a few teams there that wanted to see me throw. I went out there for the first inning and struck out the side.

"I went out to the mound for my second inning, and I was warming up and I peeked out of the corner of my eye and saw Jose Canseco walking out to the mound and he called time. He got out there and said, 'I've got to take you out.' I was like, 'What do you mean? No.' Our catcher was like, 'You're not taking him out! Why?' And he's like, 'Well, the Red Sox just purchased your contract and they want you off the field.' I've never given the ball up so easily. 'All right, here!' and I ran off the field.

"My parents were listening to the game on the radio, and obviously they didn’t know what was going on. The radio broadcasters thought I got hurt, so of course I grab my phone waiting for the Red Sox to call me, and I didn’t want to get on the phone with my parents and miss when the Red Sox called. So I'm getting all these text messages from my mom and my dad, 'Did you get hurt? What's going on? Call as soon as possible.' So I called them real quick and they were all freaking out. 'I just got picked up by the Red Sox. Everything's good. I don’t have any details.' It was just a crazy, crazy turn of events. It's something that I'll remember for the rest of my life."

On the North American Baseball League as a whole: "Actually the first day I was there, the team we were playing went on strike so the game got canceled. It was a mess the first couple days. Straight from there, we flew out to Maui, and we were there for 10 days. It was just kind of like, 'Wait, we're playing professional baseball, Independent baseball, in Maui.'

"Obviously since then, I think the league has actually folded. I don't think that league is in existence anymore, and I can see why. The travel was just absolutely ridiculous."